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Finding the Fourth Proportional to 873,689.90, 1,205,229.62 and 601,284.86

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Solution

The fourth proportional to 873,689.90, 1,205,229.62 and 601,284.86 is: 829,454.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,689.90 : 1,205,229.62 = 601,284.86 : x
  2. Step 2: Convert to fraction form
    873,689.90/1,205,229.62 = 601,284.86/x
  3. Step 3: Cross multiply
    873,689.90x = 1,205,229.62 × 601,284.86
  4. Step 4: Simplify right side
    873,689.90x = 724,686,323,329.55
  5. Step 5: Solve for x
    x = 724,686,323,329.55/873,689.90
  6. Step 6: Final answer
    x = 829,454.85

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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.