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Finding the Fourth Proportional to 671,112.78, 926,726.31 and 456,764.91

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Solution

The fourth proportional to 671,112.78, 926,726.31 and 456,764.91 is: 630,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,112.78 : 926,726.31 = 456,764.91 : x
  2. Step 2: Convert to fraction form
    671,112.78/926,726.31 = 456,764.91/x
  3. Step 3: Cross multiply
    671,112.78x = 926,726.31 × 456,764.91
  4. Step 4: Simplify right side
    671,112.78x = 423,296,059,581.78
  5. Step 5: Solve for x
    x = 423,296,059,581.78/671,112.78
  6. Step 6: Final answer
    x = 630,737.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.