Home / 723,080.61-997,849.52-396,393.04

Finding the Fourth Proportional to 723,080.61, 997,849.52 and 396,393.04

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Solution

The fourth proportional to 723,080.61, 997,849.52 and 396,393.04 is: 547,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,080.61 : 997,849.52 = 396,393.04 : x
  2. Step 2: Convert to fraction form
    723,080.61/997,849.52 = 396,393.04/x
  3. Step 3: Cross multiply
    723,080.61x = 997,849.52 × 396,393.04
  4. Step 4: Simplify right side
    723,080.61x = 395,540,604,695.34
  5. Step 5: Solve for x
    x = 395,540,604,695.34/723,080.61
  6. Step 6: Final answer
    x = 547,021.45

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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.