Home / 918,347.73-1,377,524.63-278,656.91

Finding the Fourth Proportional to 918,347.73, 1,377,524.63 and 278,656.91

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Solution

The fourth proportional to 918,347.73, 1,377,524.63 and 278,656.91 is: 417,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,347.73 : 1,377,524.63 = 278,656.91 : x
  2. Step 2: Convert to fraction form
    918,347.73/1,377,524.63 = 278,656.91/x
  3. Step 3: Cross multiply
    918,347.73x = 1,377,524.63 × 278,656.91
  4. Step 4: Simplify right side
    918,347.73x = 383,856,754,251.99
  5. Step 5: Solve for x
    x = 383,856,754,251.99/918,347.73
  6. Step 6: Final answer
    x = 417,986.28

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1.5x scale

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.