Home / 840,153.72-1,159,480.98-477,691.32

Finding the Fourth Proportional to 840,153.72, 1,159,480.98 and 477,691.32

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Solution

The fourth proportional to 840,153.72, 1,159,480.98 and 477,691.32 is: 659,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,153.72 : 1,159,480.98 = 477,691.32 : x
  2. Step 2: Convert to fraction form
    840,153.72/1,159,480.98 = 477,691.32/x
  3. Step 3: Cross multiply
    840,153.72x = 1,159,480.98 × 477,691.32
  4. Step 4: Simplify right side
    840,153.72x = 553,873,999,851.09
  5. Step 5: Solve for x
    x = 553,873,999,851.09/840,153.72
  6. Step 6: Final answer
    x = 659,253.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.