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Finding the Fourth Proportional to 644,470.80, 965,233.71 and 307,747.32

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Solution

The fourth proportional to 644,470.80, 965,233.71 and 307,747.32 is: 460,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,470.80 : 965,233.71 = 307,747.32 : x
  2. Step 2: Convert to fraction form
    644,470.80/965,233.71 = 307,747.32/x
  3. Step 3: Cross multiply
    644,470.80x = 965,233.71 × 307,747.32
  4. Step 4: Simplify right side
    644,470.80x = 297,048,087,426.16
  5. Step 5: Solve for x
    x = 297,048,087,426.16/644,470.80
  6. Step 6: Final answer
    x = 460,917.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.