Home / 739,205.70-1,108,808.55-487,263.30

Finding the Fourth Proportional to 739,205.70, 1,108,808.55 and 487,263.30

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Solution

The fourth proportional to 739,205.70, 1,108,808.55 and 487,263.30 is: 730,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,205.70 : 1,108,808.55 = 487,263.30 : x
  2. Step 2: Convert to fraction form
    739,205.70/1,108,808.55 = 487,263.30/x
  3. Step 3: Cross multiply
    739,205.70x = 1,108,808.55 × 487,263.30
  4. Step 4: Simplify right side
    739,205.70x = 540,281,713,141.22
  5. Step 5: Solve for x
    x = 540,281,713,141.22/739,205.70
  6. Step 6: Final answer
    x = 730,894.95

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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.