Home / 756,077.40-1,134,116.10-282,664.80

Finding the Fourth Proportional to 756,077.40, 1,134,116.10 and 282,664.80

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Solution

The fourth proportional to 756,077.40, 1,134,116.10 and 282,664.80 is: 423,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,077.40 : 1,134,116.10 = 282,664.80 : x
  2. Step 2: Convert to fraction form
    756,077.40/1,134,116.10 = 282,664.80/x
  3. Step 3: Cross multiply
    756,077.40x = 1,134,116.10 × 282,664.80
  4. Step 4: Simplify right side
    756,077.40x = 320,574,700,583.28
  5. Step 5: Solve for x
    x = 320,574,700,583.28/756,077.40
  6. Step 6: Final answer
    x = 423,997.20

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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.