Home / 1,120,045.13-1,680,064.50-278,596.88

Finding the Fourth Proportional to 1,120,045.13, 1,680,064.50 and 278,596.88

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Solution

The fourth proportional to 1,120,045.13, 1,680,064.50 and 278,596.88 is: 417,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,045.13 : 1,680,064.50 = 278,596.88 : x
  2. Step 2: Convert to fraction form
    1,120,045.13/1,680,064.50 = 278,596.88/x
  3. Step 3: Cross multiply
    1,120,045.13x = 1,680,064.50 × 278,596.88
  4. Step 4: Simplify right side
    1,120,045.13x = 468,060,727,898.76
  5. Step 5: Solve for x
    x = 468,060,727,898.76/1,120,045.13
  6. Step 6: Final answer
    x = 417,894.53

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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.