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Finding the Fourth Proportional to 615,390.60, 923,085.90 and 283,614.60

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Solution

The fourth proportional to 615,390.60, 923,085.90 and 283,614.60 is: 425,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,390.60 : 923,085.90 = 283,614.60 : x
  2. Step 2: Convert to fraction form
    615,390.60/923,085.90 = 283,614.60/x
  3. Step 3: Cross multiply
    615,390.60x = 923,085.90 × 283,614.60
  4. Step 4: Simplify right side
    615,390.60x = 261,800,638,294.14
  5. Step 5: Solve for x
    x = 261,800,638,294.14/615,390.60
  6. Step 6: Final answer
    x = 425,421.90

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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.