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Finding the Fourth Proportional to 672,812.61, 928,464.54 and 366,894.88

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Solution

The fourth proportional to 672,812.61, 928,464.54 and 366,894.88 is: 506,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,812.61 : 928,464.54 = 366,894.88 : x
  2. Step 2: Convert to fraction form
    672,812.61/928,464.54 = 366,894.88/x
  3. Step 3: Cross multiply
    672,812.61x = 928,464.54 × 366,894.88
  4. Step 4: Simplify right side
    672,812.61x = 340,648,884,112.14
  5. Step 5: Solve for x
    x = 340,648,884,112.14/672,812.61
  6. Step 6: Final answer
    x = 506,305.74

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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.