Home / 786,617.35-1,085,615.28-480,872.72

Finding the Fourth Proportional to 786,617.35, 1,085,615.28 and 480,872.72

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Solution

The fourth proportional to 786,617.35, 1,085,615.28 and 480,872.72 is: 663,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,617.35 : 1,085,615.28 = 480,872.72 : x
  2. Step 2: Convert to fraction form
    786,617.35/1,085,615.28 = 480,872.72/x
  3. Step 3: Cross multiply
    786,617.35x = 1,085,615.28 × 480,872.72
  4. Step 4: Simplify right side
    786,617.35x = 522,042,775,281.20
  5. Step 5: Solve for x
    x = 522,042,775,281.20/786,617.35
  6. Step 6: Final answer
    x = 663,655.30

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Double scale
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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.