Home / 724,743.95-1,000,179.95-402,455.32

Finding the Fourth Proportional to 724,743.95, 1,000,179.95 and 402,455.32

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Solution

The fourth proportional to 724,743.95, 1,000,179.95 and 402,455.32 is: 555,406.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,743.95 : 1,000,179.95 = 402,455.32 : x
  2. Step 2: Convert to fraction form
    724,743.95/1,000,179.95 = 402,455.32/x
  3. Step 3: Cross multiply
    724,743.95x = 1,000,179.95 × 402,455.32
  4. Step 4: Simplify right side
    724,743.95x = 402,527,737,322.11
  5. Step 5: Solve for x
    x = 402,527,737,322.11/724,743.95
  6. Step 6: Final answer
    x = 555,406.83

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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.