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Finding the Fourth Proportional to 427,574.16, 590,048.55 and 255,482.78

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Solution

The fourth proportional to 427,574.16, 590,048.55 and 255,482.78 is: 352,563.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,574.16 : 590,048.55 = 255,482.78 : x
  2. Step 2: Convert to fraction form
    427,574.16/590,048.55 = 255,482.78/x
  3. Step 3: Cross multiply
    427,574.16x = 590,048.55 × 255,482.78
  4. Step 4: Simplify right side
    427,574.16x = 150,747,240,938.73
  5. Step 5: Solve for x
    x = 150,747,240,938.73/427,574.16
  6. Step 6: Final answer
    x = 352,563.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.