Home / 1,487,681.80-2,231,522.70-889,318.60

Finding the Fourth Proportional to 1,487,681.80, 2,231,522.70 and 889,318.60

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Solution

The fourth proportional to 1,487,681.80, 2,231,522.70 and 889,318.60 is: 1,333,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,681.80 : 2,231,522.70 = 889,318.60 : x
  2. Step 2: Convert to fraction form
    1,487,681.80/2,231,522.70 = 889,318.60/x
  3. Step 3: Cross multiply
    1,487,681.80x = 2,231,522.70 × 889,318.60
  4. Step 4: Simplify right side
    1,487,681.80x = 1,984,534,643,432.22
  5. Step 5: Solve for x
    x = 1,984,534,643,432.22/1,487,681.80
  6. Step 6: Final answer
    x = 1,333,977.90

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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.