Home / 680,045.35-1,020,031.13-206,693.80

Finding the Fourth Proportional to 680,045.35, 1,020,031.13 and 206,693.80

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Solution

The fourth proportional to 680,045.35, 1,020,031.13 and 206,693.80 is: 310,029.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,045.35 : 1,020,031.13 = 206,693.80 : x
  2. Step 2: Convert to fraction form
    680,045.35/1,020,031.13 = 206,693.80/x
  3. Step 3: Cross multiply
    680,045.35x = 1,020,031.13 × 206,693.80
  4. Step 4: Simplify right side
    680,045.35x = 210,834,110,050.84
  5. Step 5: Solve for x
    x = 210,834,110,050.84/680,045.35
  6. Step 6: Final answer
    x = 310,029.49

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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.