Home / 821,743.89-1,232,896.07-442,703.53

Finding the Fourth Proportional to 821,743.89, 1,232,896.07 and 442,703.53

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Solution

The fourth proportional to 821,743.89, 1,232,896.07 and 442,703.53 is: 664,206.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,743.89 : 1,232,896.07 = 442,703.53 : x
  2. Step 2: Convert to fraction form
    821,743.89/1,232,896.07 = 442,703.53/x
  3. Step 3: Cross multiply
    821,743.89x = 1,232,896.07 × 442,703.53
  4. Step 4: Simplify right side
    821,743.89x = 545,807,442,312.13
  5. Step 5: Solve for x
    x = 545,807,442,312.13/821,743.89
  6. Step 6: Final answer
    x = 664,206.27

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1.5x scale

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.