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Finding the Fourth Proportional to 631,041.64, 870,834.02 and 344,559.68

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Solution

The fourth proportional to 631,041.64, 870,834.02 and 344,559.68 is: 475,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,041.64 : 870,834.02 = 344,559.68 : x
  2. Step 2: Convert to fraction form
    631,041.64/870,834.02 = 344,559.68/x
  3. Step 3: Cross multiply
    631,041.64x = 870,834.02 × 344,559.68
  4. Step 4: Simplify right side
    631,041.64x = 300,054,285,833.40
  5. Step 5: Solve for x
    x = 300,054,285,833.40/631,041.64
  6. Step 6: Final answer
    x = 475,490.47

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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.