Home / 960,903.60-1,440,145.80-487,719.60

Finding the Fourth Proportional to 960,903.60, 1,440,145.80 and 487,719.60

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Solution

The fourth proportional to 960,903.60, 1,440,145.80 and 487,719.60 is: 730,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,903.60 : 1,440,145.80 = 487,719.60 : x
  2. Step 2: Convert to fraction form
    960,903.60/1,440,145.80 = 487,719.60/x
  3. Step 3: Cross multiply
    960,903.60x = 1,440,145.80 × 487,719.60
  4. Step 4: Simplify right side
    960,903.60x = 702,387,333,517.68
  5. Step 5: Solve for x
    x = 702,387,333,517.68/960,903.60
  6. Step 6: Final answer
    x = 730,965.45

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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.