Home / 875,117.20-1,312,821.60-342,655.60

Finding the Fourth Proportional to 875,117.20, 1,312,821.60 and 342,655.60

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Solution

The fourth proportional to 875,117.20, 1,312,821.60 and 342,655.60 is: 514,040.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,117.20 : 1,312,821.60 = 342,655.60 : x
  2. Step 2: Convert to fraction form
    875,117.20/1,312,821.60 = 342,655.60/x
  3. Step 3: Cross multiply
    875,117.20x = 1,312,821.60 × 342,655.60
  4. Step 4: Simplify right side
    875,117.20x = 449,845,673,040.96
  5. Step 5: Solve for x
    x = 449,845,673,040.96/875,117.20
  6. Step 6: Final answer
    x = 514,040.49

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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.