Home / 812,236.77-1,121,004.05-468,006.80

Finding the Fourth Proportional to 812,236.77, 1,121,004.05 and 468,006.80

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Solution

The fourth proportional to 812,236.77, 1,121,004.05 and 468,006.80 is: 645,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,236.77 : 1,121,004.05 = 468,006.80 : x
  2. Step 2: Convert to fraction form
    812,236.77/1,121,004.05 = 468,006.80/x
  3. Step 3: Cross multiply
    812,236.77x = 1,121,004.05 × 468,006.80
  4. Step 4: Simplify right side
    812,236.77x = 524,637,510,282.49
  5. Step 5: Solve for x
    x = 524,637,510,282.49/812,236.77
  6. Step 6: Final answer
    x = 645,916.97

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1.5x scale

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.