Home / 993,640.40-1,490,460.60-245,686.40

Finding the Fourth Proportional to 993,640.40, 1,490,460.60 and 245,686.40

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Solution

The fourth proportional to 993,640.40, 1,490,460.60 and 245,686.40 is: 368,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,640.40 : 1,490,460.60 = 245,686.40 : x
  2. Step 2: Convert to fraction form
    993,640.40/1,490,460.60 = 245,686.40/x
  3. Step 3: Cross multiply
    993,640.40x = 1,490,460.60 × 245,686.40
  4. Step 4: Simplify right side
    993,640.40x = 366,185,899,155.84
  5. Step 5: Solve for x
    x = 366,185,899,155.84/993,640.40
  6. Step 6: Final answer
    x = 368,529.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.