Home / 688,159.31-1,031,670.66-303,634.40

Finding the Fourth Proportional to 688,159.31, 1,031,670.66 and 303,634.40

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Solution

The fourth proportional to 688,159.31, 1,031,670.66 and 303,634.40 is: 455,200.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,159.31 : 1,031,670.66 = 303,634.40 : x
  2. Step 2: Convert to fraction form
    688,159.31/1,031,670.66 = 303,634.40/x
  3. Step 3: Cross multiply
    688,159.31x = 1,031,670.66 × 303,634.40
  4. Step 4: Simplify right side
    688,159.31x = 313,250,700,301.58
  5. Step 5: Solve for x
    x = 313,250,700,301.58/688,159.31
  6. Step 6: Final answer
    x = 455,200.85

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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.