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Finding the Fourth Proportional to 611,227.46, 917,444.58 and 458,894.71

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Solution

The fourth proportional to 611,227.46, 917,444.58 and 458,894.71 is: 688,795.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,227.46 : 917,444.58 = 458,894.71 : x
  2. Step 2: Convert to fraction form
    611,227.46/917,444.58 = 458,894.71/x
  3. Step 3: Cross multiply
    611,227.46x = 917,444.58 × 458,894.71
  4. Step 4: Simplify right side
    611,227.46x = 421,010,464,480.17
  5. Step 5: Solve for x
    x = 421,010,464,480.17/611,227.46
  6. Step 6: Final answer
    x = 688,795.08

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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.