Home / 1,140,780.62-1,712,853.10-636,327.20

Finding the Fourth Proportional to 1,140,780.62, 1,712,853.10 and 636,327.20

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Solution

The fourth proportional to 1,140,780.62, 1,712,853.10 and 636,327.20 is: 955,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,780.62 : 1,712,853.10 = 636,327.20 : x
  2. Step 2: Convert to fraction form
    1,140,780.62/1,712,853.10 = 636,327.20/x
  3. Step 3: Cross multiply
    1,140,780.62x = 1,712,853.10 × 636,327.20
  4. Step 4: Simplify right side
    1,140,780.62x = 1,089,935,017,134.32
  5. Step 5: Solve for x
    x = 1,089,935,017,134.32/1,140,780.62
  6. Step 6: Final answer
    x = 955,429.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.