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Finding the Fourth Proportional to 662,632.40, 994,726.20 and 657,966.80

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Solution

The fourth proportional to 662,632.40, 994,726.20 and 657,966.80 is: 987,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,632.40 : 994,726.20 = 657,966.80 : x
  2. Step 2: Convert to fraction form
    662,632.40/994,726.20 = 657,966.80/x
  3. Step 3: Cross multiply
    662,632.40x = 994,726.20 × 657,966.80
  4. Step 4: Simplify right side
    662,632.40x = 654,496,814,690.16
  5. Step 5: Solve for x
    x = 654,496,814,690.16/662,632.40
  6. Step 6: Final answer
    x = 987,722.32

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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.