Home / 1,436,812.02-2,155,239.09-426,036.78

Finding the Fourth Proportional to 1,436,812.02, 2,155,239.09 and 426,036.78

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Solution

The fourth proportional to 1,436,812.02, 2,155,239.09 and 426,036.78 is: 639,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,812.02 : 2,155,239.09 = 426,036.78 : x
  2. Step 2: Convert to fraction form
    1,436,812.02/2,155,239.09 = 426,036.78/x
  3. Step 3: Cross multiply
    1,436,812.02x = 2,155,239.09 × 426,036.78
  4. Step 4: Simplify right side
    1,436,812.02x = 918,211,122,033.73
  5. Step 5: Solve for x
    x = 918,211,122,033.73/1,436,812.02
  6. Step 6: Final answer
    x = 639,061.41

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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.