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Finding the Fourth Proportional to 707,999.04, 977,034.80 and 385,708.36

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Solution

The fourth proportional to 707,999.04, 977,034.80 and 385,708.36 is: 532,275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,999.04 : 977,034.80 = 385,708.36 : x
  2. Step 2: Convert to fraction form
    707,999.04/977,034.80 = 385,708.36/x
  3. Step 3: Cross multiply
    707,999.04x = 977,034.80 × 385,708.36
  4. Step 4: Simplify right side
    707,999.04x = 376,850,490,370.93
  5. Step 5: Solve for x
    x = 376,850,490,370.93/707,999.04
  6. Step 6: Final answer
    x = 532,275.43

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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.