Home / 740,920.96-1,111,252.18-208,315.38

Finding the Fourth Proportional to 740,920.96, 1,111,252.18 and 208,315.38

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Solution

The fourth proportional to 740,920.96, 1,111,252.18 and 208,315.38 is: 312,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,920.96 : 1,111,252.18 = 208,315.38 : x
  2. Step 2: Convert to fraction form
    740,920.96/1,111,252.18 = 208,315.38/x
  3. Step 3: Cross multiply
    740,920.96x = 1,111,252.18 × 208,315.38
  4. Step 4: Simplify right side
    740,920.96x = 231,490,920,152.53
  5. Step 5: Solve for x
    x = 231,490,920,152.53/740,920.96
  6. Step 6: Final answer
    x = 312,436.73

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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.