Home / 875,542.80-1,312,342.20-342,886.80

Finding the Fourth Proportional to 875,542.80, 1,312,342.20 and 342,886.80

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Solution

The fourth proportional to 875,542.80, 1,312,342.20 and 342,886.80 is: 513,949.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,542.80 : 1,312,342.20 = 342,886.80 : x
  2. Step 2: Convert to fraction form
    875,542.80/1,312,342.20 = 342,886.80/x
  3. Step 3: Cross multiply
    875,542.80x = 1,312,342.20 × 342,886.80
  4. Step 4: Simplify right side
    875,542.80x = 449,984,817,462.96
  5. Step 5: Solve for x
    x = 449,984,817,462.96/875,542.80
  6. Step 6: Final answer
    x = 513,949.54

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1.5x scale

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.