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Finding the Fourth Proportional to 690,159.75, 952,395.56 and 384,228.27

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Solution

The fourth proportional to 690,159.75, 952,395.56 and 384,228.27 is: 530,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,159.75 : 952,395.56 = 384,228.27 : x
  2. Step 2: Convert to fraction form
    690,159.75/952,395.56 = 384,228.27/x
  3. Step 3: Cross multiply
    690,159.75x = 952,395.56 × 384,228.27
  4. Step 4: Simplify right side
    690,159.75x = 365,937,296,453.34
  5. Step 5: Solve for x
    x = 365,937,296,453.34/690,159.75
  6. Step 6: Final answer
    x = 530,221.15

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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.