Home / 738,492.30-1,107,414.45-339,000.30

Finding the Fourth Proportional to 738,492.30, 1,107,414.45 and 339,000.30

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Solution

The fourth proportional to 738,492.30, 1,107,414.45 and 339,000.30 is: 508,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,492.30 : 1,107,414.45 = 339,000.30 : x
  2. Step 2: Convert to fraction form
    738,492.30/1,107,414.45 = 339,000.30/x
  3. Step 3: Cross multiply
    738,492.30x = 1,107,414.45 × 339,000.30
  4. Step 4: Simplify right side
    738,492.30x = 375,413,830,774.34
  5. Step 5: Solve for x
    x = 375,413,830,774.34/738,492.30
  6. Step 6: Final answer
    x = 508,351.72

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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.