Home / 875,928.80-1,312,921.20-343,272.80

Finding the Fourth Proportional to 875,928.80, 1,312,921.20 and 343,272.80

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Solution

The fourth proportional to 875,928.80, 1,312,921.20 and 343,272.80 is: 514,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,928.80 : 1,312,921.20 = 343,272.80 : x
  2. Step 2: Convert to fraction form
    875,928.80/1,312,921.20 = 343,272.80/x
  3. Step 3: Cross multiply
    875,928.80x = 1,312,921.20 × 343,272.80
  4. Step 4: Simplify right side
    875,928.80x = 450,690,136,503.36
  5. Step 5: Solve for x
    x = 450,690,136,503.36/875,928.80
  6. Step 6: Final answer
    x = 514,528.28

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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.