Home / 756,054.90-1,134,082.35-282,642.30

Finding the Fourth Proportional to 756,054.90, 1,134,082.35 and 282,642.30

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Solution

The fourth proportional to 756,054.90, 1,134,082.35 and 282,642.30 is: 423,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,054.90 : 1,134,082.35 = 282,642.30 : x
  2. Step 2: Convert to fraction form
    756,054.90/1,134,082.35 = 282,642.30/x
  3. Step 3: Cross multiply
    756,054.90x = 1,134,082.35 × 282,642.30
  4. Step 4: Simplify right side
    756,054.90x = 320,539,643,793.41
  5. Step 5: Solve for x
    x = 320,539,643,793.41/756,054.90
  6. Step 6: Final answer
    x = 423,963.45

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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.