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Finding the Fourth Proportional to 504,312.91, 695,947.39 and 274,870.21

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Solution

The fourth proportional to 504,312.91, 695,947.39 and 274,870.21 is: 379,318.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,312.91 : 695,947.39 = 274,870.21 : x
  2. Step 2: Convert to fraction form
    504,312.91/695,947.39 = 274,870.21/x
  3. Step 3: Cross multiply
    504,312.91x = 695,947.39 × 274,870.21
  4. Step 4: Simplify right side
    504,312.91x = 191,295,206,715.83
  5. Step 5: Solve for x
    x = 191,295,206,715.83/504,312.91
  6. Step 6: Final answer
    x = 379,318.48

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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.