Home / 778,753.86-1,074,477.18-456,290.70

Finding the Fourth Proportional to 778,753.86, 1,074,477.18 and 456,290.70

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Solution

The fourth proportional to 778,753.86, 1,074,477.18 and 456,290.70 is: 629,562.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,753.86 : 1,074,477.18 = 456,290.70 : x
  2. Step 2: Convert to fraction form
    778,753.86/1,074,477.18 = 456,290.70/x
  3. Step 3: Cross multiply
    778,753.86x = 1,074,477.18 × 456,290.70
  4. Step 4: Simplify right side
    778,753.86x = 490,273,944,596.23
  5. Step 5: Solve for x
    x = 490,273,944,596.23/778,753.86
  6. Step 6: Final answer
    x = 629,562.14

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Double scale
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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.