Home / 1,421,559-2,132,708.04-424,287

Finding the Fourth Proportional to 1,421,559, 2,132,708.04 and 424,287

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Solution

The fourth proportional to 1,421,559, 2,132,708.04 and 424,287 is: 636,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,559 : 2,132,708.04 = 424,287 : x
  2. Step 2: Convert to fraction form
    1,421,559/2,132,708.04 = 424,287/x
  3. Step 3: Cross multiply
    1,421,559x = 2,132,708.04 × 424,287
  4. Step 4: Simplify right side
    1,421,559x = 904,880,296,167.48
  5. Step 5: Solve for x
    x = 904,880,296,167.48/1,421,559
  6. Step 6: Final answer
    x = 636,540.80

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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.