Home / 1,309,423.32-1,964,614.80-551,455.62

Finding the Fourth Proportional to 1,309,423.32, 1,964,614.80 and 551,455.62

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Solution

The fourth proportional to 1,309,423.32, 1,964,614.80 and 551,455.62 is: 827,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,423.32 : 1,964,614.80 = 551,455.62 : x
  2. Step 2: Convert to fraction form
    1,309,423.32/1,964,614.80 = 551,455.62/x
  3. Step 3: Cross multiply
    1,309,423.32x = 1,964,614.80 × 551,455.62
  4. Step 4: Simplify right side
    1,309,423.32x = 1,083,397,872,595.18
  5. Step 5: Solve for x
    x = 1,083,397,872,595.18/1,309,423.32
  6. Step 6: Final answer
    x = 827,385.50

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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.