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Finding the Fourth Proportional to 664,497.70, 916,688.01 and 482,928.10

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Solution

The fourth proportional to 664,497.70, 916,688.01 and 482,928.10 is: 666,209.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,497.70 : 916,688.01 = 482,928.10 : x
  2. Step 2: Convert to fraction form
    664,497.70/916,688.01 = 482,928.10/x
  3. Step 3: Cross multiply
    664,497.70x = 916,688.01 × 482,928.10
  4. Step 4: Simplify right side
    664,497.70x = 442,694,398,962.08
  5. Step 5: Solve for x
    x = 442,694,398,962.08/664,497.70
  6. Step 6: Final answer
    x = 666,209.08

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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.