Home / 820,061.60-1,229,509.20-314,427.20

Finding the Fourth Proportional to 820,061.60, 1,229,509.20 and 314,427.20

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Solution

The fourth proportional to 820,061.60, 1,229,509.20 and 314,427.20 is: 471,417.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,061.60 : 1,229,509.20 = 314,427.20 : x
  2. Step 2: Convert to fraction form
    820,061.60/1,229,509.20 = 314,427.20/x
  3. Step 3: Cross multiply
    820,061.60x = 1,229,509.20 × 314,427.20
  4. Step 4: Simplify right side
    820,061.60x = 386,591,135,130.24
  5. Step 5: Solve for x
    x = 386,591,135,130.24/820,061.60
  6. Step 6: Final answer
    x = 471,417.19

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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.