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Finding the Fourth Proportional to 647,387.68, 966,287.72 and 607,496.80

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Solution

The fourth proportional to 647,387.68, 966,287.72 and 607,496.80 is: 906,746.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,387.68 : 966,287.72 = 607,496.80 : x
  2. Step 2: Convert to fraction form
    647,387.68/966,287.72 = 607,496.80/x
  3. Step 3: Cross multiply
    647,387.68x = 966,287.72 × 607,496.80
  4. Step 4: Simplify right side
    647,387.68x = 587,016,697,779.30
  5. Step 5: Solve for x
    x = 587,016,697,779.30/647,387.68
  6. Step 6: Final answer
    x = 906,746.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.