Home / 712,849.60-1,069,472.58-579,399.40

Finding the Fourth Proportional to 712,849.60, 1,069,472.58 and 579,399.40

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Solution

The fourth proportional to 712,849.60, 1,069,472.58 and 579,399.40 is: 869,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,849.60 : 1,069,472.58 = 579,399.40 : x
  2. Step 2: Convert to fraction form
    712,849.60/1,069,472.58 = 579,399.40/x
  3. Step 3: Cross multiply
    712,849.60x = 1,069,472.58 × 579,399.40
  4. Step 4: Simplify right side
    712,849.60x = 619,651,771,168.45
  5. Step 5: Solve for x
    x = 619,651,771,168.45/712,849.60
  6. Step 6: Final answer
    x = 869,260.18

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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.