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Finding the Fourth Proportional to 609,548.60, 913,448.10 and 448,366.70

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Solution

The fourth proportional to 609,548.60, 913,448.10 and 448,366.70 is: 671,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,548.60 : 913,448.10 = 448,366.70 : x
  2. Step 2: Convert to fraction form
    609,548.60/913,448.10 = 448,366.70/x
  3. Step 3: Cross multiply
    609,548.60x = 913,448.10 × 448,366.70
  4. Step 4: Simplify right side
    609,548.60x = 409,559,710,218.27
  5. Step 5: Solve for x
    x = 409,559,710,218.27/609,548.60
  6. Step 6: Final answer
    x = 671,906.57

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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.