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Finding the Fourth Proportional to 710,241.02, 979,889.48 and 404,240.76

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Solution

The fourth proportional to 710,241.02, 979,889.48 and 404,240.76 is: 557,713.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,241.02 : 979,889.48 = 404,240.76 : x
  2. Step 2: Convert to fraction form
    710,241.02/979,889.48 = 404,240.76/x
  3. Step 3: Cross multiply
    710,241.02x = 979,889.48 × 404,240.76
  4. Step 4: Simplify right side
    710,241.02x = 396,111,267,605.90
  5. Step 5: Solve for x
    x = 396,111,267,605.90/710,241.02
  6. Step 6: Final answer
    x = 557,713.87

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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.