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Finding the Fourth Proportional to 578,003.32, 797,626.56 and 319,864.73

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Solution

The fourth proportional to 578,003.32, 797,626.56 and 319,864.73 is: 441,403.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,003.32 : 797,626.56 = 319,864.73 : x
  2. Step 2: Convert to fraction form
    578,003.32/797,626.56 = 319,864.73/x
  3. Step 3: Cross multiply
    578,003.32x = 797,626.56 × 319,864.73
  4. Step 4: Simplify right side
    578,003.32x = 255,132,604,255.23
  5. Step 5: Solve for x
    x = 255,132,604,255.23/578,003.32
  6. Step 6: Final answer
    x = 441,403.36

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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.