Home / 878,950.20-1,314,926.10-761,921.40

Finding the Fourth Proportional to 878,950.20, 1,314,926.10 and 761,921.40

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Solution

The fourth proportional to 878,950.20, 1,314,926.10 and 761,921.40 is: 1,139,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,950.20 : 1,314,926.10 = 761,921.40 : x
  2. Step 2: Convert to fraction form
    878,950.20/1,314,926.10 = 761,921.40/x
  3. Step 3: Cross multiply
    878,950.20x = 1,314,926.10 × 761,921.40
  4. Step 4: Simplify right side
    878,950.20x = 1,001,870,335,008.54
  5. Step 5: Solve for x
    x = 1,001,870,335,008.54/878,950.20
  6. Step 6: Final answer
    x = 1,139,848.80

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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.