Home / 724,352.80-1,087,220.40-619,290.40

Finding the Fourth Proportional to 724,352.80, 1,087,220.40 and 619,290.40

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Solution

The fourth proportional to 724,352.80, 1,087,220.40 and 619,290.40 is: 929,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,352.80 : 1,087,220.40 = 619,290.40 : x
  2. Step 2: Convert to fraction form
    724,352.80/1,087,220.40 = 619,290.40/x
  3. Step 3: Cross multiply
    724,352.80x = 1,087,220.40 × 619,290.40
  4. Step 4: Simplify right side
    724,352.80x = 673,305,156,404.16
  5. Step 5: Solve for x
    x = 673,305,156,404.16/724,352.80
  6. Step 6: Final answer
    x = 929,526.55

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1.5x scale

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.