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Finding the Fourth Proportional to 877,549.80, 1,315,287.90 and 655,674.60

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Solution

The fourth proportional to 877,549.80, 1,315,287.90 and 655,674.60 is: 982,737.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,549.80 : 1,315,287.90 = 655,674.60 : x
  2. Step 2: Convert to fraction form
    877,549.80/1,315,287.90 = 655,674.60/x
  3. Step 3: Cross multiply
    877,549.80x = 1,315,287.90 × 655,674.60
  4. Step 4: Simplify right side
    877,549.80x = 862,400,867,717.34
  5. Step 5: Solve for x
    x = 862,400,867,717.34/877,549.80
  6. Step 6: Final answer
    x = 982,737.24

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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.