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Finding the Fourth Proportional to 611,339.32, 915,324.18 and 461,124.82

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Solution

The fourth proportional to 611,339.32, 915,324.18 and 461,124.82 is: 690,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,339.32 : 915,324.18 = 461,124.82 : x
  2. Step 2: Convert to fraction form
    611,339.32/915,324.18 = 461,124.82/x
  3. Step 3: Cross multiply
    611,339.32x = 915,324.18 × 461,124.82
  4. Step 4: Simplify right side
    611,339.32x = 422,078,697,744.15
  5. Step 5: Solve for x
    x = 422,078,697,744.15/611,339.32
  6. Step 6: Final answer
    x = 690,416.41

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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.