Home / 454,723.20-682,646.40-286,243.20

Finding the Fourth Proportional to 454,723.20, 682,646.40 and 286,243.20

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Solution

The fourth proportional to 454,723.20, 682,646.40 and 286,243.20 is: 429,718.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,723.20 : 682,646.40 = 286,243.20 : x
  2. Step 2: Convert to fraction form
    454,723.20/682,646.40 = 286,243.20/x
  3. Step 3: Cross multiply
    454,723.20x = 682,646.40 × 286,243.20
  4. Step 4: Simplify right side
    454,723.20x = 195,402,890,004.48
  5. Step 5: Solve for x
    x = 195,402,890,004.48/454,723.20
  6. Step 6: Final answer
    x = 429,718.32

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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.