Home / 756,072.20-1,134,108.30-686,088.20

Finding the Fourth Proportional to 756,072.20, 1,134,108.30 and 686,088.20

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Solution

The fourth proportional to 756,072.20, 1,134,108.30 and 686,088.20 is: 1,029,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,072.20 : 1,134,108.30 = 686,088.20 : x
  2. Step 2: Convert to fraction form
    756,072.20/1,134,108.30 = 686,088.20/x
  3. Step 3: Cross multiply
    756,072.20x = 1,134,108.30 × 686,088.20
  4. Step 4: Simplify right side
    756,072.20x = 778,098,322,152.06
  5. Step 5: Solve for x
    x = 778,098,322,152.06/756,072.20
  6. Step 6: Final answer
    x = 1,029,132.30

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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.