Home / 688,650.42-950,336.64-382,717.20

Finding the Fourth Proportional to 688,650.42, 950,336.64 and 382,717.20

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Solution

The fourth proportional to 688,650.42, 950,336.64 and 382,717.20 is: 528,149.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,650.42 : 950,336.64 = 382,717.20 : x
  2. Step 2: Convert to fraction form
    688,650.42/950,336.64 = 382,717.20/x
  3. Step 3: Cross multiply
    688,650.42x = 950,336.64 × 382,717.20
  4. Step 4: Simplify right side
    688,650.42x = 363,710,177,918.21
  5. Step 5: Solve for x
    x = 363,710,177,918.21/688,650.42
  6. Step 6: Final answer
    x = 528,149.21

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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.