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Finding the Fourth Proportional to 723,398.55, 997,714.04 and 465,305.15

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Solution

The fourth proportional to 723,398.55, 997,714.04 and 465,305.15 is: 641,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,398.55 : 997,714.04 = 465,305.15 : x
  2. Step 2: Convert to fraction form
    723,398.55/997,714.04 = 465,305.15/x
  3. Step 3: Cross multiply
    723,398.55x = 997,714.04 × 465,305.15
  4. Step 4: Simplify right side
    723,398.55x = 464,241,473,724.21
  5. Step 5: Solve for x
    x = 464,241,473,724.21/723,398.55
  6. Step 6: Final answer
    x = 641,750.63

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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.