Home / 460,022.40-690,055.20-144,489.60

Finding the Fourth Proportional to 460,022.40, 690,055.20 and 144,489.60

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Solution

The fourth proportional to 460,022.40, 690,055.20 and 144,489.60 is: 216,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,022.40 : 690,055.20 = 144,489.60 : x
  2. Step 2: Convert to fraction form
    460,022.40/690,055.20 = 144,489.60/x
  3. Step 3: Cross multiply
    460,022.40x = 690,055.20 × 144,489.60
  4. Step 4: Simplify right side
    460,022.40x = 99,705,799,825.92
  5. Step 5: Solve for x
    x = 99,705,799,825.92/460,022.40
  6. Step 6: Final answer
    x = 216,741.18

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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.