Home / 738,045.90-1,107,068.85-509,723.10

Finding the Fourth Proportional to 738,045.90, 1,107,068.85 and 509,723.10

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Solution

The fourth proportional to 738,045.90, 1,107,068.85 and 509,723.10 is: 764,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,045.90 : 1,107,068.85 = 509,723.10 : x
  2. Step 2: Convert to fraction form
    738,045.90/1,107,068.85 = 509,723.10/x
  3. Step 3: Cross multiply
    738,045.90x = 1,107,068.85 × 509,723.10
  4. Step 4: Simplify right side
    738,045.90x = 564,298,566,135.44
  5. Step 5: Solve for x
    x = 564,298,566,135.44/738,045.90
  6. Step 6: Final answer
    x = 764,584.65

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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.