Home / 918,331.02-1,377,963.09-412,790.18

Finding the Fourth Proportional to 918,331.02, 1,377,963.09 and 412,790.18

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Solution

The fourth proportional to 918,331.02, 1,377,963.09 and 412,790.18 is: 619,394.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,331.02 : 1,377,963.09 = 412,790.18 : x
  2. Step 2: Convert to fraction form
    918,331.02/1,377,963.09 = 412,790.18/x
  3. Step 3: Cross multiply
    918,331.02x = 1,377,963.09 × 412,790.18
  4. Step 4: Simplify right side
    918,331.02x = 568,809,625,064.64
  5. Step 5: Solve for x
    x = 568,809,625,064.64/918,331.02
  6. Step 6: Final answer
    x = 619,394.98

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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.