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Finding the Fourth Proportional to 671,106.78, 926,718.03 and 456,758.91

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Solution

The fourth proportional to 671,106.78, 926,718.03 and 456,758.91 is: 630,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,106.78 : 926,718.03 = 456,758.91 : x
  2. Step 2: Convert to fraction form
    671,106.78/926,718.03 = 456,758.91/x
  3. Step 3: Cross multiply
    671,106.78x = 926,718.03 × 456,758.91
  4. Step 4: Simplify right side
    671,106.78x = 423,286,717,260.15
  5. Step 5: Solve for x
    x = 423,286,717,260.15/671,106.78
  6. Step 6: Final answer
    x = 630,729.31

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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.