Home / 875,132.80-1,312,310.40-342,476.80

Finding the Fourth Proportional to 875,132.80, 1,312,310.40 and 342,476.80

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Solution

The fourth proportional to 875,132.80, 1,312,310.40 and 342,476.80 is: 513,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,132.80 : 1,312,310.40 = 342,476.80 : x
  2. Step 2: Convert to fraction form
    875,132.80/1,312,310.40 = 342,476.80/x
  3. Step 3: Cross multiply
    875,132.80x = 1,312,310.40 × 342,476.80
  4. Step 4: Simplify right side
    875,132.80x = 449,435,866,398.72
  5. Step 5: Solve for x
    x = 449,435,866,398.72/875,132.80
  6. Step 6: Final answer
    x = 513,563.05

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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.