Home / 993,280.40-1,489,920.60-245,326.40

Finding the Fourth Proportional to 993,280.40, 1,489,920.60 and 245,326.40

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Solution

The fourth proportional to 993,280.40, 1,489,920.60 and 245,326.40 is: 367,989.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,280.40 : 1,489,920.60 = 245,326.40 : x
  2. Step 2: Convert to fraction form
    993,280.40/1,489,920.60 = 245,326.40/x
  3. Step 3: Cross multiply
    993,280.40x = 1,489,920.60 × 245,326.40
  4. Step 4: Simplify right side
    993,280.40x = 365,516,857,083.84
  5. Step 5: Solve for x
    x = 365,516,857,083.84/993,280.40
  6. Step 6: Final answer
    x = 367,989.60

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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.