Home / 723,904.52-999,108.16-401,718.12

Finding the Fourth Proportional to 723,904.52, 999,108.16 and 401,718.12

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Solution

The fourth proportional to 723,904.52, 999,108.16 and 401,718.12 is: 554,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,904.52 : 999,108.16 = 401,718.12 : x
  2. Step 2: Convert to fraction form
    723,904.52/999,108.16 = 401,718.12/x
  3. Step 3: Cross multiply
    723,904.52x = 999,108.16 × 401,718.12
  4. Step 4: Simplify right side
    723,904.52x = 401,359,851,711.86
  5. Step 5: Solve for x
    x = 401,359,851,711.86/723,904.52
  6. Step 6: Final answer
    x = 554,437.55

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Double scale
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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.