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Finding the Fourth Proportional to 677,107, 934,407.80 and 375,301

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Solution

The fourth proportional to 677,107, 934,407.80 and 375,301 is: 517,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,107 : 934,407.80 = 375,301 : x
  2. Step 2: Convert to fraction form
    677,107/934,407.80 = 375,301/x
  3. Step 3: Cross multiply
    677,107x = 934,407.80 × 375,301
  4. Step 4: Simplify right side
    677,107x = 350,684,181,747.80
  5. Step 5: Solve for x
    x = 350,684,181,747.80/677,107
  6. Step 6: Final answer
    x = 517,915.46

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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.