Home / 780,031.80-1,170,047.70-306,732.60

Finding the Fourth Proportional to 780,031.80, 1,170,047.70 and 306,732.60

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Solution

The fourth proportional to 780,031.80, 1,170,047.70 and 306,732.60 is: 460,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,031.80 : 1,170,047.70 = 306,732.60 : x
  2. Step 2: Convert to fraction form
    780,031.80/1,170,047.70 = 306,732.60/x
  3. Step 3: Cross multiply
    780,031.80x = 1,170,047.70 × 306,732.60
  4. Step 4: Simplify right side
    780,031.80x = 358,891,773,145.02
  5. Step 5: Solve for x
    x = 358,891,773,145.02/780,031.80
  6. Step 6: Final answer
    x = 460,098.90

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Similar ratio
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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.