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Finding the Fourth Proportional to 519,612.26, 779,330.54 and 145,549.22

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Solution

The fourth proportional to 519,612.26, 779,330.54 and 145,549.22 is: 218,299.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,612.26 : 779,330.54 = 145,549.22 : x
  2. Step 2: Convert to fraction form
    519,612.26/779,330.54 = 145,549.22/x
  3. Step 3: Cross multiply
    519,612.26x = 779,330.54 × 145,549.22
  4. Step 4: Simplify right side
    519,612.26x = 113,430,952,219.18
  5. Step 5: Solve for x
    x = 113,430,952,219.18/519,612.26
  6. Step 6: Final answer
    x = 218,299.22

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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.