Home / 875,251.20-1,312,876.80-314,342.40

Finding the Fourth Proportional to 875,251.20, 1,312,876.80 and 314,342.40

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Solution

The fourth proportional to 875,251.20, 1,312,876.80 and 314,342.40 is: 471,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,251.20 : 1,312,876.80 = 314,342.40 : x
  2. Step 2: Convert to fraction form
    875,251.20/1,312,876.80 = 314,342.40/x
  3. Step 3: Cross multiply
    875,251.20x = 1,312,876.80 × 314,342.40
  4. Step 4: Simplify right side
    875,251.20x = 412,692,844,216.32
  5. Step 5: Solve for x
    x = 412,692,844,216.32/875,251.20
  6. Step 6: Final answer
    x = 471,513.60

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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.