Home / 728,767.02-1,005,700.25-406,497.99

Finding the Fourth Proportional to 728,767.02, 1,005,700.25 and 406,497.99

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Solution

The fourth proportional to 728,767.02, 1,005,700.25 and 406,497.99 is: 560,968.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,767.02 : 1,005,700.25 = 406,497.99 : x
  2. Step 2: Convert to fraction form
    728,767.02/1,005,700.25 = 406,497.99/x
  3. Step 3: Cross multiply
    728,767.02x = 1,005,700.25 × 406,497.99
  4. Step 4: Simplify right side
    728,767.02x = 408,815,130,167.50
  5. Step 5: Solve for x
    x = 408,815,130,167.50/728,767.02
  6. Step 6: Final answer
    x = 560,968.21

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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.