Home / 1,776,480.49-2,664,695.98-428,631.78

Finding the Fourth Proportional to 1,776,480.49, 2,664,695.98 and 428,631.78

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Solution

The fourth proportional to 1,776,480.49, 2,664,695.98 and 428,631.78 is: 642,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,480.49 : 2,664,695.98 = 428,631.78 : x
  2. Step 2: Convert to fraction form
    1,776,480.49/2,664,695.98 = 428,631.78/x
  3. Step 3: Cross multiply
    1,776,480.49x = 2,664,695.98 × 428,631.78
  4. Step 4: Simplify right side
    1,776,480.49x = 1,142,173,391,594.64
  5. Step 5: Solve for x
    x = 1,142,173,391,594.64/1,776,480.49
  6. Step 6: Final answer
    x = 642,941.70

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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.