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Finding the Fourth Proportional to 647,726.18, 893,905.85 and 375,794.12

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Solution

The fourth proportional to 647,726.18, 893,905.85 and 375,794.12 is: 518,621.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,726.18 : 893,905.85 = 375,794.12 : x
  2. Step 2: Convert to fraction form
    647,726.18/893,905.85 = 375,794.12/x
  3. Step 3: Cross multiply
    647,726.18x = 893,905.85 × 375,794.12
  4. Step 4: Simplify right side
    647,726.18x = 335,924,565,437.85
  5. Step 5: Solve for x
    x = 335,924,565,437.85/647,726.18
  6. Step 6: Final answer
    x = 518,621.26

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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.