Home / 786,759.55-1,085,726.57-442,595.72

Finding the Fourth Proportional to 786,759.55, 1,085,726.57 and 442,595.72

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Solution

The fourth proportional to 786,759.55, 1,085,726.57 and 442,595.72 is: 610,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,759.55 : 1,085,726.57 = 442,595.72 : x
  2. Step 2: Convert to fraction form
    786,759.55/1,085,726.57 = 442,595.72/x
  3. Step 3: Cross multiply
    786,759.55x = 1,085,726.57 × 442,595.72
  4. Step 4: Simplify right side
    786,759.55x = 480,537,936,793.09
  5. Step 5: Solve for x
    x = 480,537,936,793.09/786,759.55
  6. Step 6: Final answer
    x = 610,781.20

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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.