Home / 869,615.55-1,304,423.33-308,577.15

Finding the Fourth Proportional to 869,615.55, 1,304,423.33 and 308,577.15

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Solution

The fourth proportional to 869,615.55, 1,304,423.33 and 308,577.15 is: 462,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,615.55 : 1,304,423.33 = 308,577.15 : x
  2. Step 2: Convert to fraction form
    869,615.55/1,304,423.33 = 308,577.15/x
  3. Step 3: Cross multiply
    869,615.55x = 1,304,423.33 × 308,577.15
  4. Step 4: Simplify right side
    869,615.55x = 402,515,232,022.02
  5. Step 5: Solve for x
    x = 402,515,232,022.02/869,615.55
  6. Step 6: Final answer
    x = 462,865.73

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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.