Home / 828,751.50-1,243,320.13-260,101.43

Finding the Fourth Proportional to 828,751.50, 1,243,320.13 and 260,101.43

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Solution

The fourth proportional to 828,751.50, 1,243,320.13 and 260,101.43 is: 390,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,751.50 : 1,243,320.13 = 260,101.43 : x
  2. Step 2: Convert to fraction form
    828,751.50/1,243,320.13 = 260,101.43/x
  3. Step 3: Cross multiply
    828,751.50x = 1,243,320.13 × 260,101.43
  4. Step 4: Simplify right side
    828,751.50x = 323,389,342,531.76
  5. Step 5: Solve for x
    x = 323,389,342,531.76/828,751.50
  6. Step 6: Final answer
    x = 390,212.68

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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.