Home / 898,320.80-1,347,481.20-425,928.80

Finding the Fourth Proportional to 898,320.80, 1,347,481.20 and 425,928.80

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Solution

The fourth proportional to 898,320.80, 1,347,481.20 and 425,928.80 is: 638,893.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,320.80 : 1,347,481.20 = 425,928.80 : x
  2. Step 2: Convert to fraction form
    898,320.80/1,347,481.20 = 425,928.80/x
  3. Step 3: Cross multiply
    898,320.80x = 1,347,481.20 × 425,928.80
  4. Step 4: Simplify right side
    898,320.80x = 573,931,050,538.56
  5. Step 5: Solve for x
    x = 573,931,050,538.56/898,320.80
  6. Step 6: Final answer
    x = 638,893.20

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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.