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Finding the Fourth Proportional to 770,605.61, 1,063,409.60 and 426,456.06

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Solution

The fourth proportional to 770,605.61, 1,063,409.60 and 426,456.06 is: 588,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,605.61 : 1,063,409.60 = 426,456.06 : x
  2. Step 2: Convert to fraction form
    770,605.61/1,063,409.60 = 426,456.06/x
  3. Step 3: Cross multiply
    770,605.61x = 1,063,409.60 × 426,456.06
  4. Step 4: Simplify right side
    770,605.61x = 453,497,473,236.10
  5. Step 5: Solve for x
    x = 453,497,473,236.10/770,605.61
  6. Step 6: Final answer
    x = 588,494.90

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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.