Home / 724,600.50-999,979.92-402,310.64

Finding the Fourth Proportional to 724,600.50, 999,979.92 and 402,310.64

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Solution

The fourth proportional to 724,600.50, 999,979.92 and 402,310.64 is: 555,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,600.50 : 999,979.92 = 402,310.64 : x
  2. Step 2: Convert to fraction form
    724,600.50/999,979.92 = 402,310.64/x
  3. Step 3: Cross multiply
    724,600.50x = 999,979.92 × 402,310.64
  4. Step 4: Simplify right side
    724,600.50x = 402,302,556,602.45
  5. Step 5: Solve for x
    x = 402,302,556,602.45/724,600.50
  6. Step 6: Final answer
    x = 555,206.02

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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.