Home / 688,627.17-950,282.73-378,530.80

Finding the Fourth Proportional to 688,627.17, 950,282.73 and 378,530.80

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Solution

The fourth proportional to 688,627.17, 950,282.73 and 378,530.80 is: 522,359.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,627.17 : 950,282.73 = 378,530.80 : x
  2. Step 2: Convert to fraction form
    688,627.17/950,282.73 = 378,530.80/x
  3. Step 3: Cross multiply
    688,627.17x = 950,282.73 × 378,530.80
  4. Step 4: Simplify right side
    688,627.17x = 359,711,277,261.67
  5. Step 5: Solve for x
    x = 359,711,277,261.67/688,627.17
  6. Step 6: Final answer
    x = 522,359.98

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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.