Home / 659,417.40-991,313.10-572,812.20

Finding the Fourth Proportional to 659,417.40, 991,313.10 and 572,812.20

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Solution

The fourth proportional to 659,417.40, 991,313.10 and 572,812.20 is: 861,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,417.40 : 991,313.10 = 572,812.20 : x
  2. Step 2: Convert to fraction form
    659,417.40/991,313.10 = 572,812.20/x
  3. Step 3: Cross multiply
    659,417.40x = 991,313.10 × 572,812.20
  4. Step 4: Simplify right side
    659,417.40x = 567,836,237,699.82
  5. Step 5: Solve for x
    x = 567,836,237,699.82/659,417.40
  6. Step 6: Final answer
    x = 861,118.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.