Home / 828,364.92-1,240,923.50-429,267.48

Finding the Fourth Proportional to 828,364.92, 1,240,923.50 and 429,267.48

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Solution

The fourth proportional to 828,364.92, 1,240,923.50 and 429,267.48 is: 643,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,364.92 : 1,240,923.50 = 429,267.48 : x
  2. Step 2: Convert to fraction form
    828,364.92/1,240,923.50 = 429,267.48/x
  3. Step 3: Cross multiply
    828,364.92x = 1,240,923.50 × 429,267.48
  4. Step 4: Simplify right side
    828,364.92x = 532,688,103,717.78
  5. Step 5: Solve for x
    x = 532,688,103,717.78/828,364.92
  6. Step 6: Final answer
    x = 643,059.71

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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.