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Finding the Fourth Proportional to 705,294.72, 972,823.68 and 450,532.80

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Solution

The fourth proportional to 705,294.72, 972,823.68 and 450,532.80 is: 621,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,294.72 : 972,823.68 = 450,532.80 : x
  2. Step 2: Convert to fraction form
    705,294.72/972,823.68 = 450,532.80/x
  3. Step 3: Cross multiply
    705,294.72x = 972,823.68 × 450,532.80
  4. Step 4: Simplify right side
    705,294.72x = 438,288,976,456.70
  5. Step 5: Solve for x
    x = 438,288,976,456.70/705,294.72
  6. Step 6: Final answer
    x = 621,426.71

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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.