Home / 872,520.80-1,308,075.28-392,397.01

Finding the Fourth Proportional to 872,520.80, 1,308,075.28 and 392,397.01

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Solution

The fourth proportional to 872,520.80, 1,308,075.28 and 392,397.01 is: 588,278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,520.80 : 1,308,075.28 = 392,397.01 : x
  2. Step 2: Convert to fraction form
    872,520.80/1,308,075.28 = 392,397.01/x
  3. Step 3: Cross multiply
    872,520.80x = 1,308,075.28 × 392,397.01
  4. Step 4: Simplify right side
    872,520.80x = 513,284,824,475.73
  5. Step 5: Solve for x
    x = 513,284,824,475.73/872,520.80
  6. Step 6: Final answer
    x = 588,278.04

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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.