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Finding the Fourth Proportional to 660,267.52, 911,179.20 and 358,461.52

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Solution

The fourth proportional to 660,267.52, 911,179.20 and 358,461.52 is: 494,682.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,267.52 : 911,179.20 = 358,461.52 : x
  2. Step 2: Convert to fraction form
    660,267.52/911,179.20 = 358,461.52/x
  3. Step 3: Cross multiply
    660,267.52x = 911,179.20 × 358,461.52
  4. Step 4: Simplify right side
    660,267.52x = 326,622,681,024.38
  5. Step 5: Solve for x
    x = 326,622,681,024.38/660,267.52
  6. Step 6: Final answer
    x = 494,682.34

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1.5x scale

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.