Home / 985,366.80-1,478,633.40-649,378.80

Finding the Fourth Proportional to 985,366.80, 1,478,633.40 and 649,378.80

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Solution

The fourth proportional to 985,366.80, 1,478,633.40 and 649,378.80 is: 974,452.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,366.80 : 1,478,633.40 = 649,378.80 : x
  2. Step 2: Convert to fraction form
    985,366.80/1,478,633.40 = 649,378.80/x
  3. Step 3: Cross multiply
    985,366.80x = 1,478,633.40 × 649,378.80
  4. Step 4: Simplify right side
    985,366.80x = 960,193,182,931.92
  5. Step 5: Solve for x
    x = 960,193,182,931.92/985,366.80
  6. Step 6: Final answer
    x = 974,452.54

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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.