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Finding the Fourth Proportional to 508,239.74, 701,364.30 and 290,445.93

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Solution

The fourth proportional to 508,239.74, 701,364.30 and 290,445.93 is: 400,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,239.74 : 701,364.30 = 290,445.93 : x
  2. Step 2: Convert to fraction form
    508,239.74/701,364.30 = 290,445.93/x
  3. Step 3: Cross multiply
    508,239.74x = 701,364.30 × 290,445.93
  4. Step 4: Simplify right side
    508,239.74x = 203,708,406,382.30
  5. Step 5: Solve for x
    x = 203,708,406,382.30/508,239.74
  6. Step 6: Final answer
    x = 400,811.65

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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.