Home / 802,908.45-1,108,011.96-463,376.70

Finding the Fourth Proportional to 802,908.45, 1,108,011.96 and 463,376.70

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Solution

The fourth proportional to 802,908.45, 1,108,011.96 and 463,376.70 is: 639,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,908.45 : 1,108,011.96 = 463,376.70 : x
  2. Step 2: Convert to fraction form
    802,908.45/1,108,011.96 = 463,376.70/x
  3. Step 3: Cross multiply
    802,908.45x = 1,108,011.96 × 463,376.70
  4. Step 4: Simplify right side
    802,908.45x = 513,426,925,585.33
  5. Step 5: Solve for x
    x = 513,426,925,585.33/802,908.45
  6. Step 6: Final answer
    x = 639,458.86

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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.