Home / 778,816.39-1,074,780.62-456,758.77

Finding the Fourth Proportional to 778,816.39, 1,074,780.62 and 456,758.77

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Solution

The fourth proportional to 778,816.39, 1,074,780.62 and 456,758.77 is: 630,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,816.39 : 1,074,780.62 = 456,758.77 : x
  2. Step 2: Convert to fraction form
    778,816.39/1,074,780.62 = 456,758.77/x
  3. Step 3: Cross multiply
    778,816.39x = 1,074,780.62 × 456,758.77
  4. Step 4: Simplify right side
    778,816.39x = 490,915,474,011.04
  5. Step 5: Solve for x
    x = 490,915,474,011.04/778,816.39
  6. Step 6: Final answer
    x = 630,335.31

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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.