Home / 878,051.93-1,316,797.61-278,872.92

Finding the Fourth Proportional to 878,051.93, 1,316,797.61 and 278,872.92

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Solution

The fourth proportional to 878,051.93, 1,316,797.61 and 278,872.92 is: 418,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,051.93 : 1,316,797.61 = 278,872.92 : x
  2. Step 2: Convert to fraction form
    878,051.93/1,316,797.61 = 278,872.92/x
  3. Step 3: Cross multiply
    878,051.93x = 1,316,797.61 × 278,872.92
  4. Step 4: Simplify right side
    878,051.93x = 367,219,193,155.36
  5. Step 5: Solve for x
    x = 367,219,193,155.36/878,051.93
  6. Step 6: Final answer
    x = 418,220.36

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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.