Home / 773,855.80-1,160,783.70-442,079.80

Finding the Fourth Proportional to 773,855.80, 1,160,783.70 and 442,079.80

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Solution

The fourth proportional to 773,855.80, 1,160,783.70 and 442,079.80 is: 663,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,855.80 : 1,160,783.70 = 442,079.80 : x
  2. Step 2: Convert to fraction form
    773,855.80/1,160,783.70 = 442,079.80/x
  3. Step 3: Cross multiply
    773,855.80x = 1,160,783.70 × 442,079.80
  4. Step 4: Simplify right side
    773,855.80x = 513,159,025,939.26
  5. Step 5: Solve for x
    x = 513,159,025,939.26/773,855.80
  6. Step 6: Final answer
    x = 663,119.70

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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.