Home / 756,555.20-1,134,832.80-383,307.20

Finding the Fourth Proportional to 756,555.20, 1,134,832.80 and 383,307.20

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Solution

The fourth proportional to 756,555.20, 1,134,832.80 and 383,307.20 is: 574,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,555.20 : 1,134,832.80 = 383,307.20 : x
  2. Step 2: Convert to fraction form
    756,555.20/1,134,832.80 = 383,307.20/x
  3. Step 3: Cross multiply
    756,555.20x = 1,134,832.80 × 383,307.20
  4. Step 4: Simplify right side
    756,555.20x = 434,989,583,036.16
  5. Step 5: Solve for x
    x = 434,989,583,036.16/756,555.20
  6. Step 6: Final answer
    x = 574,960.80

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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.