Home / 657,744.60-983,766.28-387,228.08

Finding the Fourth Proportional to 657,744.60, 983,766.28 and 387,228.08

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Solution

The fourth proportional to 657,744.60, 983,766.28 and 387,228.08 is: 579,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,744.60 : 983,766.28 = 387,228.08 : x
  2. Step 2: Convert to fraction form
    657,744.60/983,766.28 = 387,228.08/x
  3. Step 3: Cross multiply
    657,744.60x = 983,766.28 × 387,228.08
  4. Step 4: Simplify right side
    657,744.60x = 380,941,927,773.14
  5. Step 5: Solve for x
    x = 380,941,927,773.14/657,744.60
  6. Step 6: Final answer
    x = 579,163.90

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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.