Home / 812,462.92-1,122,366.71-648,904.69

Finding the Fourth Proportional to 812,462.92, 1,122,366.71 and 648,904.69

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Solution

The fourth proportional to 812,462.92, 1,122,366.71 and 648,904.69 is: 896,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,462.92 : 1,122,366.71 = 648,904.69 : x
  2. Step 2: Convert to fraction form
    812,462.92/1,122,366.71 = 648,904.69/x
  3. Step 3: Cross multiply
    812,462.92x = 1,122,366.71 × 648,904.69
  4. Step 4: Simplify right side
    812,462.92x = 728,309,013,162.51
  5. Step 5: Solve for x
    x = 728,309,013,162.51/812,462.92
  6. Step 6: Final answer
    x = 896,421.24

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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.