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Finding the Fourth Proportional to 669,349.71, 922,922.10 and 499,288.59

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Solution

The fourth proportional to 669,349.71, 922,922.10 and 499,288.59 is: 688,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,349.71 : 922,922.10 = 499,288.59 : x
  2. Step 2: Convert to fraction form
    669,349.71/922,922.10 = 499,288.59/x
  3. Step 3: Cross multiply
    669,349.71x = 922,922.10 × 499,288.59
  4. Step 4: Simplify right side
    669,349.71x = 460,804,473,988.84
  5. Step 5: Solve for x
    x = 460,804,473,988.84/669,349.71
  6. Step 6: Final answer
    x = 688,436.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.