Home / 648,739.62-887,480.38-646,007.20

Finding the Fourth Proportional to 648,739.62, 887,480.38 and 646,007.20

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Solution

The fourth proportional to 648,739.62, 887,480.38 and 646,007.20 is: 883,742.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,739.62 : 887,480.38 = 646,007.20 : x
  2. Step 2: Convert to fraction form
    648,739.62/887,480.38 = 646,007.20/x
  3. Step 3: Cross multiply
    648,739.62x = 887,480.38 × 646,007.20
  4. Step 4: Simplify right side
    648,739.62x = 573,318,715,338.74
  5. Step 5: Solve for x
    x = 573,318,715,338.74/648,739.62
  6. Step 6: Final answer
    x = 883,742.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.