Home / 849,489.15-1,172,089.96-500,643.90

Finding the Fourth Proportional to 849,489.15, 1,172,089.96 and 500,643.90

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Solution

The fourth proportional to 849,489.15, 1,172,089.96 and 500,643.90 is: 690,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,489.15 : 1,172,089.96 = 500,643.90 : x
  2. Step 2: Convert to fraction form
    849,489.15/1,172,089.96 = 500,643.90/x
  3. Step 3: Cross multiply
    849,489.15x = 1,172,089.96 × 500,643.90
  4. Step 4: Simplify right side
    849,489.15x = 586,799,689,825.94
  5. Step 5: Solve for x
    x = 586,799,689,825.94/849,489.15
  6. Step 6: Final answer
    x = 690,767.73

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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.