Home / 756,086.10-1,134,129.15-686,102.10

Finding the Fourth Proportional to 756,086.10, 1,134,129.15 and 686,102.10

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Solution

The fourth proportional to 756,086.10, 1,134,129.15 and 686,102.10 is: 1,029,153.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,086.10 : 1,134,129.15 = 686,102.10 : x
  2. Step 2: Convert to fraction form
    756,086.10/1,134,129.15 = 686,102.10/x
  3. Step 3: Cross multiply
    756,086.10x = 1,134,129.15 × 686,102.10
  4. Step 4: Simplify right side
    756,086.10x = 778,128,391,486.22
  5. Step 5: Solve for x
    x = 778,128,391,486.22/756,086.10
  6. Step 6: Final answer
    x = 1,029,153.15

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Double scale
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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.