Home / 820,617.93-1,231,465.14-288,125.28

Finding the Fourth Proportional to 820,617.93, 1,231,465.14 and 288,125.28

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Solution

The fourth proportional to 820,617.93, 1,231,465.14 and 288,125.28 is: 432,376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,617.93 : 1,231,465.14 = 288,125.28 : x
  2. Step 2: Convert to fraction form
    820,617.93/1,231,465.14 = 288,125.28/x
  3. Step 3: Cross multiply
    820,617.93x = 1,231,465.14 × 288,125.28
  4. Step 4: Simplify right side
    820,617.93x = 354,816,238,272.74
  5. Step 5: Solve for x
    x = 354,816,238,272.74/820,617.93
  6. Step 6: Final answer
    x = 432,376.90

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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.