Home / 1,278,432.76-1,918,505.22-530,479.48

Finding the Fourth Proportional to 1,278,432.76, 1,918,505.22 and 530,479.48

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Solution

The fourth proportional to 1,278,432.76, 1,918,505.22 and 530,479.48 is: 796,074.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,432.76 : 1,918,505.22 = 530,479.48 : x
  2. Step 2: Convert to fraction form
    1,278,432.76/1,918,505.22 = 530,479.48/x
  3. Step 3: Cross multiply
    1,278,432.76x = 1,918,505.22 × 530,479.48
  4. Step 4: Simplify right side
    1,278,432.76x = 1,017,727,651,482.89
  5. Step 5: Solve for x
    x = 1,017,727,651,482.89/1,278,432.76
  6. Step 6: Final answer
    x = 796,074.45

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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.