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Finding the Fourth Proportional to 664,496.70, 916,686.63 and 482,927.10

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Solution

The fourth proportional to 664,496.70, 916,686.63 and 482,927.10 is: 666,207.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,496.70 : 916,686.63 = 482,927.10 : x
  2. Step 2: Convert to fraction form
    664,496.70/916,686.63 = 482,927.10/x
  3. Step 3: Cross multiply
    664,496.70x = 916,686.63 × 482,927.10
  4. Step 4: Simplify right side
    664,496.70x = 442,692,815,834.67
  5. Step 5: Solve for x
    x = 442,692,815,834.67/664,496.70
  6. Step 6: Final answer
    x = 666,207.70

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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.