Home / 615,239.40-923,004.90-315,766.20

Finding the Fourth Proportional to 615,239.40, 923,004.90 and 315,766.20

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Solution

The fourth proportional to 615,239.40, 923,004.90 and 315,766.20 is: 473,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,239.40 : 923,004.90 = 315,766.20 : x
  2. Step 2: Convert to fraction form
    615,239.40/923,004.90 = 315,766.20/x
  3. Step 3: Cross multiply
    615,239.40x = 923,004.90 × 315,766.20
  4. Step 4: Simplify right side
    615,239.40x = 291,453,749,854.38
  5. Step 5: Solve for x
    x = 291,453,749,854.38/615,239.40
  6. Step 6: Final answer
    x = 473,724.13

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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.