Home / 519,631.35-717,077.28-290,182.25

Finding the Fourth Proportional to 519,631.35, 717,077.28 and 290,182.25

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Solution

The fourth proportional to 519,631.35, 717,077.28 and 290,182.25 is: 400,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,631.35 : 717,077.28 = 290,182.25 : x
  2. Step 2: Convert to fraction form
    519,631.35/717,077.28 = 290,182.25/x
  3. Step 3: Cross multiply
    519,631.35x = 717,077.28 × 290,182.25
  4. Step 4: Simplify right side
    519,631.35x = 208,083,096,565.46
  5. Step 5: Solve for x
    x = 208,083,096,565.46/519,631.35
  6. Step 6: Final answer
    x = 400,443.69

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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.