Home / 657,228.70-985,065.45-278,148.70

Finding the Fourth Proportional to 657,228.70, 985,065.45 and 278,148.70

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Solution

The fourth proportional to 657,228.70, 985,065.45 and 278,148.70 is: 416,893.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,228.70 : 985,065.45 = 278,148.70 : x
  2. Step 2: Convert to fraction form
    657,228.70/985,065.45 = 278,148.70/x
  3. Step 3: Cross multiply
    657,228.70x = 985,065.45 × 278,148.70
  4. Step 4: Simplify right side
    657,228.70x = 273,994,674,332.42
  5. Step 5: Solve for x
    x = 273,994,674,332.42/657,228.70
  6. Step 6: Final answer
    x = 416,893.96

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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.