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Finding the Fourth Proportional to 524,995.74, 724,548.54 and 321,182.40

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Solution

The fourth proportional to 524,995.74, 724,548.54 and 321,182.40 is: 443,265.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,995.74 : 724,548.54 = 321,182.40 : x
  2. Step 2: Convert to fraction form
    524,995.74/724,548.54 = 321,182.40/x
  3. Step 3: Cross multiply
    524,995.74x = 724,548.54 × 321,182.40
  4. Step 4: Simplify right side
    524,995.74x = 232,712,238,993.70
  5. Step 5: Solve for x
    x = 232,712,238,993.70/524,995.74
  6. Step 6: Final answer
    x = 443,265.00

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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.