Home / 724,378.80-1,087,259.40-619,316.40

Finding the Fourth Proportional to 724,378.80, 1,087,259.40 and 619,316.40

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Solution

The fourth proportional to 724,378.80, 1,087,259.40 and 619,316.40 is: 929,565.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,378.80 : 1,087,259.40 = 619,316.40 : x
  2. Step 2: Convert to fraction form
    724,378.80/1,087,259.40 = 619,316.40/x
  3. Step 3: Cross multiply
    724,378.80x = 1,087,259.40 × 619,316.40
  4. Step 4: Simplify right side
    724,378.80x = 673,357,577,474.16
  5. Step 5: Solve for x
    x = 673,357,577,474.16/724,378.80
  6. Step 6: Final answer
    x = 929,565.55

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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.