Home / 806,401.23-1,210,349.04-407,321.70

Finding the Fourth Proportional to 806,401.23, 1,210,349.04 and 407,321.70

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Solution

The fourth proportional to 806,401.23, 1,210,349.04 and 407,321.70 is: 611,359.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,401.23 : 1,210,349.04 = 407,321.70 : x
  2. Step 2: Convert to fraction form
    806,401.23/1,210,349.04 = 407,321.70/x
  3. Step 3: Cross multiply
    806,401.23x = 1,210,349.04 × 407,321.70
  4. Step 4: Simplify right side
    806,401.23x = 493,001,428,566.17
  5. Step 5: Solve for x
    x = 493,001,428,566.17/806,401.23
  6. Step 6: Final answer
    x = 611,359.97

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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.