Home / 724,326.32-999,556.08-402,040.28

Finding the Fourth Proportional to 724,326.32, 999,556.08 and 402,040.28

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Solution

The fourth proportional to 724,326.32, 999,556.08 and 402,040.28 is: 554,807.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,326.32 : 999,556.08 = 402,040.28 : x
  2. Step 2: Convert to fraction form
    724,326.32/999,556.08 = 402,040.28/x
  3. Step 3: Cross multiply
    724,326.32x = 999,556.08 × 402,040.28
  4. Step 4: Simplify right side
    724,326.32x = 401,861,806,278.90
  5. Step 5: Solve for x
    x = 401,861,806,278.90/724,326.32
  6. Step 6: Final answer
    x = 554,807.68

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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.