Home / 918,655.04-1,377,675.96-386,076.80

Finding the Fourth Proportional to 918,655.04, 1,377,675.96 and 386,076.80

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Solution

The fourth proportional to 918,655.04, 1,377,675.96 and 386,076.80 is: 578,986.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,655.04 : 1,377,675.96 = 386,076.80 : x
  2. Step 2: Convert to fraction form
    918,655.04/1,377,675.96 = 386,076.80/x
  3. Step 3: Cross multiply
    918,655.04x = 1,377,675.96 × 386,076.80
  4. Step 4: Simplify right side
    918,655.04x = 531,888,726,073.73
  5. Step 5: Solve for x
    x = 531,888,726,073.73/918,655.04
  6. Step 6: Final answer
    x = 578,986.35

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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.