Home / 778,864.80-1,074,841.20-456,765.60

Finding the Fourth Proportional to 778,864.80, 1,074,841.20 and 456,765.60

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Solution

The fourth proportional to 778,864.80, 1,074,841.20 and 456,765.60 is: 630,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,864.80 : 1,074,841.20 = 456,765.60 : x
  2. Step 2: Convert to fraction form
    778,864.80/1,074,841.20 = 456,765.60/x
  3. Step 3: Cross multiply
    778,864.80x = 1,074,841.20 × 456,765.60
  4. Step 4: Simplify right side
    778,864.80x = 490,950,485,622.72
  5. Step 5: Solve for x
    x = 490,950,485,622.72/778,864.80
  6. Step 6: Final answer
    x = 630,341.09

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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.