Home / 927,380.26-1,391,155.48-287,688.92

Finding the Fourth Proportional to 927,380.26, 1,391,155.48 and 287,688.92

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Solution

The fourth proportional to 927,380.26, 1,391,155.48 and 287,688.92 is: 431,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,380.26 : 1,391,155.48 = 287,688.92 : x
  2. Step 2: Convert to fraction form
    927,380.26/1,391,155.48 = 287,688.92/x
  3. Step 3: Cross multiply
    927,380.26x = 1,391,155.48 × 287,688.92
  4. Step 4: Simplify right side
    927,380.26x = 400,220,011,806.24
  5. Step 5: Solve for x
    x = 400,220,011,806.24/927,380.26
  6. Step 6: Final answer
    x = 431,559.77

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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.