Home / 1,376,326.48-2,064,489.72-429,778.30

Finding the Fourth Proportional to 1,376,326.48, 2,064,489.72 and 429,778.30

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Solution

The fourth proportional to 1,376,326.48, 2,064,489.72 and 429,778.30 is: 644,667.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,326.48 : 2,064,489.72 = 429,778.30 : x
  2. Step 2: Convert to fraction form
    1,376,326.48/2,064,489.72 = 429,778.30/x
  3. Step 3: Cross multiply
    1,376,326.48x = 2,064,489.72 × 429,778.30
  4. Step 4: Simplify right side
    1,376,326.48x = 887,272,882,229.08
  5. Step 5: Solve for x
    x = 887,272,882,229.08/1,376,326.48
  6. Step 6: Final answer
    x = 644,667.45

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Double scale
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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.