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Finding the Fourth Proportional to 578,145.06, 797,862.56 and 323,490.78

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Solution

The fourth proportional to 578,145.06, 797,862.56 and 323,490.78 is: 446,429.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,145.06 : 797,862.56 = 323,490.78 : x
  2. Step 2: Convert to fraction form
    578,145.06/797,862.56 = 323,490.78/x
  3. Step 3: Cross multiply
    578,145.06x = 797,862.56 × 323,490.78
  4. Step 4: Simplify right side
    578,145.06x = 258,101,180,249.74
  5. Step 5: Solve for x
    x = 258,101,180,249.74/578,145.06
  6. Step 6: Final answer
    x = 446,429.79

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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.