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Finding the Fourth Proportional to 611,225.46, 917,441.58 and 458,892.71

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Solution

The fourth proportional to 611,225.46, 917,441.58 and 458,892.71 is: 688,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,225.46 : 917,441.58 = 458,892.71 : x
  2. Step 2: Convert to fraction form
    611,225.46/917,441.58 = 458,892.71/x
  3. Step 3: Cross multiply
    611,225.46x = 917,441.58 × 458,892.71
  4. Step 4: Simplify right side
    611,225.46x = 421,007,252,912.88
  5. Step 5: Solve for x
    x = 421,007,252,912.88/611,225.46
  6. Step 6: Final answer
    x = 688,792.08

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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.