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Finding the Fourth Proportional to 578,446.77, 798,246.54 and 320,318.60

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Solution

The fourth proportional to 578,446.77, 798,246.54 and 320,318.60 is: 442,034.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,446.77 : 798,246.54 = 320,318.60 : x
  2. Step 2: Convert to fraction form
    578,446.77/798,246.54 = 320,318.60/x
  3. Step 3: Cross multiply
    578,446.77x = 798,246.54 × 320,318.60
  4. Step 4: Simplify right side
    578,446.77x = 255,693,210,550.44
  5. Step 5: Solve for x
    x = 255,693,210,550.44/578,446.77
  6. Step 6: Final answer
    x = 442,034.13

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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.