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Finding the Fourth Proportional to 655,245.40, 904,517.63 and 440,510.00

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Solution

The fourth proportional to 655,245.40, 904,517.63 and 440,510.00 is: 608,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,245.40 : 904,517.63 = 440,510.00 : x
  2. Step 2: Convert to fraction form
    655,245.40/904,517.63 = 440,510.00/x
  3. Step 3: Cross multiply
    655,245.40x = 904,517.63 × 440,510.00
  4. Step 4: Simplify right side
    655,245.40x = 398,449,058,595.94
  5. Step 5: Solve for x
    x = 398,449,058,595.94/655,245.40
  6. Step 6: Final answer
    x = 608,091.35

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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.