Home / 680,600.95-1,018,336.30-406,031.76

Finding the Fourth Proportional to 680,600.95, 1,018,336.30 and 406,031.76

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Solution

The fourth proportional to 680,600.95, 1,018,336.30 and 406,031.76 is: 607,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,600.95 : 1,018,336.30 = 406,031.76 : x
  2. Step 2: Convert to fraction form
    680,600.95/1,018,336.30 = 406,031.76/x
  3. Step 3: Cross multiply
    680,600.95x = 1,018,336.30 × 406,031.76
  4. Step 4: Simplify right side
    680,600.95x = 413,476,879,145.81
  5. Step 5: Solve for x
    x = 413,476,879,145.81/680,600.95
  6. Step 6: Final answer
    x = 607,517.34

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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.