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Finding the Fourth Proportional to 551,833.83, 761,598.32 and 310,126.59

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Solution

The fourth proportional to 551,833.83, 761,598.32 and 310,126.59 is: 428,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,833.83 : 761,598.32 = 310,126.59 : x
  2. Step 2: Convert to fraction form
    551,833.83/761,598.32 = 310,126.59/x
  3. Step 3: Cross multiply
    551,833.83x = 761,598.32 × 310,126.59
  4. Step 4: Simplify right side
    551,833.83x = 236,191,888,380.70
  5. Step 5: Solve for x
    x = 236,191,888,380.70/551,833.83
  6. Step 6: Final answer
    x = 428,012.70

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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.