Home / 721,713.24-996,038.40-415,801.14

Finding the Fourth Proportional to 721,713.24, 996,038.40 and 415,801.14

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Solution

The fourth proportional to 721,713.24, 996,038.40 and 415,801.14 is: 573,848.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,713.24 : 996,038.40 = 415,801.14 : x
  2. Step 2: Convert to fraction form
    721,713.24/996,038.40 = 415,801.14/x
  3. Step 3: Cross multiply
    721,713.24x = 996,038.40 × 415,801.14
  4. Step 4: Simplify right side
    721,713.24x = 414,153,902,203.78
  5. Step 5: Solve for x
    x = 414,153,902,203.78/721,713.24
  6. Step 6: Final answer
    x = 573,848.29

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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.