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Finding the Fourth Proportional to 898,658.82, 1,348,657.71 and 659,391.01

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Solution

The fourth proportional to 898,658.82, 1,348,657.71 and 659,391.01 is: 989,577.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,658.82 : 1,348,657.71 = 659,391.01 : x
  2. Step 2: Convert to fraction form
    898,658.82/1,348,657.71 = 659,391.01/x
  3. Step 3: Cross multiply
    898,658.82x = 1,348,657.71 × 659,391.01
  4. Step 4: Simplify right side
    898,658.82x = 889,292,767,405.90
  5. Step 5: Solve for x
    x = 889,292,767,405.90/898,658.82
  6. Step 6: Final answer
    x = 989,577.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.