Home / 828,359.91-1,240,916.01-429,262.47

Finding the Fourth Proportional to 828,359.91, 1,240,916.01 and 429,262.47

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Solution

The fourth proportional to 828,359.91, 1,240,916.01 and 429,262.47 is: 643,052.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,359.91 : 1,240,916.01 = 429,262.47 : x
  2. Step 2: Convert to fraction form
    828,359.91/1,240,916.01 = 429,262.47/x
  3. Step 3: Cross multiply
    828,359.91x = 1,240,916.01 × 429,262.47
  4. Step 4: Simplify right side
    828,359.91x = 532,678,671,515.15
  5. Step 5: Solve for x
    x = 532,678,671,515.15/828,359.91
  6. Step 6: Final answer
    x = 643,052.21

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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.