Home / 756,101.10-1,134,151.65-686,117.10

Finding the Fourth Proportional to 756,101.10, 1,134,151.65 and 686,117.10

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Solution

The fourth proportional to 756,101.10, 1,134,151.65 and 686,117.10 is: 1,029,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,101.10 : 1,134,151.65 = 686,117.10 : x
  2. Step 2: Convert to fraction form
    756,101.10/1,134,151.65 = 686,117.10/x
  3. Step 3: Cross multiply
    756,101.10x = 1,134,151.65 × 686,117.10
  4. Step 4: Simplify right side
    756,101.10x = 778,160,841,058.22
  5. Step 5: Solve for x
    x = 778,160,841,058.22/756,101.10
  6. Step 6: Final answer
    x = 1,029,175.65

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Double scale
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Similar ratio
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1.5x scale

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.