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Finding the Fourth Proportional to 347,017.70, 520,040.55 and 276,061.70

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Solution

The fourth proportional to 347,017.70, 520,040.55 and 276,061.70 is: 413,705.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,017.70 : 520,040.55 = 276,061.70 : x
  2. Step 2: Convert to fraction form
    347,017.70/520,040.55 = 276,061.70/x
  3. Step 3: Cross multiply
    347,017.70x = 520,040.55 × 276,061.70
  4. Step 4: Simplify right side
    347,017.70x = 143,563,278,301.94
  5. Step 5: Solve for x
    x = 143,563,278,301.94/347,017.70
  6. Step 6: Final answer
    x = 413,705.92

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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.