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Finding the Fourth Proportional to 615,432.40, 923,273.40 and 349,320.40

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Solution

The fourth proportional to 615,432.40, 923,273.40 and 349,320.40 is: 524,051.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,432.40 : 923,273.40 = 349,320.40 : x
  2. Step 2: Convert to fraction form
    615,432.40/923,273.40 = 349,320.40/x
  3. Step 3: Cross multiply
    615,432.40x = 923,273.40 × 349,320.40
  4. Step 4: Simplify right side
    615,432.40x = 322,518,233,397.36
  5. Step 5: Solve for x
    x = 322,518,233,397.36/615,432.40
  6. Step 6: Final answer
    x = 524,051.44

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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.