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Finding the Fourth Proportional to 768,558, 1,060,618.75 and 424,393.46

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Solution

The fourth proportional to 768,558, 1,060,618.75 and 424,393.46 is: 585,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,558 : 1,060,618.75 = 424,393.46 : x
  2. Step 2: Convert to fraction form
    768,558/1,060,618.75 = 424,393.46/x
  3. Step 3: Cross multiply
    768,558x = 1,060,618.75 × 424,393.46
  4. Step 4: Simplify right side
    768,558x = 450,119,661,053.38
  5. Step 5: Solve for x
    x = 450,119,661,053.38/768,558
  6. Step 6: Final answer
    x = 585,667.78

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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.