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Finding the Fourth Proportional to 652,619.12, 900,897 and 611,764.88

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Solution

The fourth proportional to 652,619.12, 900,897 and 611,764.88 is: 844,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,619.12 : 900,897 = 611,764.88 : x
  2. Step 2: Convert to fraction form
    652,619.12/900,897 = 611,764.88/x
  3. Step 3: Cross multiply
    652,619.12x = 900,897 × 611,764.88
  4. Step 4: Simplify right side
    652,619.12x = 551,137,145,097.36
  5. Step 5: Solve for x
    x = 551,137,145,097.36/652,619.12
  6. Step 6: Final answer
    x = 844,500.46

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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.