Home / 657,680.10-986,228.55-302,511.30

Finding the Fourth Proportional to 657,680.10, 986,228.55 and 302,511.30

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Solution

The fourth proportional to 657,680.10, 986,228.55 and 302,511.30 is: 453,632.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,680.10 : 986,228.55 = 302,511.30 : x
  2. Step 2: Convert to fraction form
    657,680.10/986,228.55 = 302,511.30/x
  3. Step 3: Cross multiply
    657,680.10x = 986,228.55 × 302,511.30
  4. Step 4: Simplify right side
    657,680.10x = 298,345,280,757.62
  5. Step 5: Solve for x
    x = 298,345,280,757.62/657,680.10
  6. Step 6: Final answer
    x = 453,632.82

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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.