Home / 442,769.78-610,913.60-258,979.76

Finding the Fourth Proportional to 442,769.78, 610,913.60 and 258,979.76

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Solution

The fourth proportional to 442,769.78, 610,913.60 and 258,979.76 is: 357,328.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,769.78 : 610,913.60 = 258,979.76 : x
  2. Step 2: Convert to fraction form
    442,769.78/610,913.60 = 258,979.76/x
  3. Step 3: Cross multiply
    442,769.78x = 610,913.60 × 258,979.76
  4. Step 4: Simplify right side
    442,769.78x = 158,214,257,508.74
  5. Step 5: Solve for x
    x = 158,214,257,508.74/442,769.78
  6. Step 6: Final answer
    x = 357,328.49

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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.