Home / 724,928.94-1,000,374.08-402,659.57

Finding the Fourth Proportional to 724,928.94, 1,000,374.08 and 402,659.57

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Solution

The fourth proportional to 724,928.94, 1,000,374.08 and 402,659.57 is: 555,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,928.94 : 1,000,374.08 = 402,659.57 : x
  2. Step 2: Convert to fraction form
    724,928.94/1,000,374.08 = 402,659.57/x
  3. Step 3: Cross multiply
    724,928.94x = 1,000,374.08 × 402,659.57
  4. Step 4: Simplify right side
    724,928.94x = 402,810,189,876.78
  5. Step 5: Solve for x
    x = 402,810,189,876.78/724,928.94
  6. Step 6: Final answer
    x = 555,654.72

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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.