Home / 778,814.92-1,074,778.59-456,757.30

Finding the Fourth Proportional to 778,814.92, 1,074,778.59 and 456,757.30

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Solution

The fourth proportional to 778,814.92, 1,074,778.59 and 456,757.30 is: 630,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,814.92 : 1,074,778.59 = 456,757.30 : x
  2. Step 2: Convert to fraction form
    778,814.92/1,074,778.59 = 456,757.30/x
  3. Step 3: Cross multiply
    778,814.92x = 1,074,778.59 × 456,757.30
  4. Step 4: Simplify right side
    778,814.92x = 490,912,967,353.26
  5. Step 5: Solve for x
    x = 490,912,967,353.26/778,814.92
  6. Step 6: Final answer
    x = 630,333.28

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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.