Home / 927,220.66-1,391,030.78-287,511.52

Finding the Fourth Proportional to 927,220.66, 1,391,030.78 and 287,511.52

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Solution

The fourth proportional to 927,220.66, 1,391,030.78 and 287,511.52 is: 431,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,220.66 : 1,391,030.78 = 287,511.52 : x
  2. Step 2: Convert to fraction form
    927,220.66/1,391,030.78 = 287,511.52/x
  3. Step 3: Cross multiply
    927,220.66x = 1,391,030.78 × 287,511.52
  4. Step 4: Simplify right side
    927,220.66x = 399,937,373,924.59
  5. Step 5: Solve for x
    x = 399,937,373,924.59/927,220.66
  6. Step 6: Final answer
    x = 431,329.23

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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.