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Finding the Fourth Proportional to 665,807.46, 918,818.46 and 359,883.21

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Solution

The fourth proportional to 665,807.46, 918,818.46 and 359,883.21 is: 496,641.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,807.46 : 918,818.46 = 359,883.21 : x
  2. Step 2: Convert to fraction form
    665,807.46/918,818.46 = 359,883.21/x
  3. Step 3: Cross multiply
    665,807.46x = 918,818.46 × 359,883.21
  4. Step 4: Simplify right side
    665,807.46x = 330,667,336,792.06
  5. Step 5: Solve for x
    x = 330,667,336,792.06/665,807.46
  6. Step 6: Final answer
    x = 496,641.08

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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.