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Finding the Fourth Proportional to 555,717.71, 766,894.10 and 301,068.90

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Solution

The fourth proportional to 555,717.71, 766,894.10 and 301,068.90 is: 415,477.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,717.71 : 766,894.10 = 301,068.90 : x
  2. Step 2: Convert to fraction form
    555,717.71/766,894.10 = 301,068.90/x
  3. Step 3: Cross multiply
    555,717.71x = 766,894.10 × 301,068.90
  4. Step 4: Simplify right side
    555,717.71x = 230,887,961,598.15
  5. Step 5: Solve for x
    x = 230,887,961,598.15/555,717.71
  6. Step 6: Final answer
    x = 415,477.06

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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.