Home / 869,666.30-1,304,499.45-372,002.30

Finding the Fourth Proportional to 869,666.30, 1,304,499.45 and 372,002.30

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Solution

The fourth proportional to 869,666.30, 1,304,499.45 and 372,002.30 is: 558,003.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,666.30 : 1,304,499.45 = 372,002.30 : x
  2. Step 2: Convert to fraction form
    869,666.30/1,304,499.45 = 372,002.30/x
  3. Step 3: Cross multiply
    869,666.30x = 1,304,499.45 × 372,002.30
  4. Step 4: Simplify right side
    869,666.30x = 485,276,795,748.74
  5. Step 5: Solve for x
    x = 485,276,795,748.74/869,666.30
  6. Step 6: Final answer
    x = 558,003.45

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Double scale
Find fourth proportional to 869,667.30, 1,304,500.95 and 372,003.30
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.