Home / 727,616.16-1,091,424.30-278,474.79

Finding the Fourth Proportional to 727,616.16, 1,091,424.30 and 278,474.79

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Solution

The fourth proportional to 727,616.16, 1,091,424.30 and 278,474.79 is: 417,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,616.16 : 1,091,424.30 = 278,474.79 : x
  2. Step 2: Convert to fraction form
    727,616.16/1,091,424.30 = 278,474.79/x
  3. Step 3: Cross multiply
    727,616.16x = 1,091,424.30 × 278,474.79
  4. Step 4: Simplify right side
    727,616.16x = 303,934,152,743.40
  5. Step 5: Solve for x
    x = 303,934,152,743.40/727,616.16
  6. Step 6: Final answer
    x = 417,712.21

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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.