Home / 988,020-1,479,661.84-506,981.92

Finding the Fourth Proportional to 988,020, 1,479,661.84 and 506,981.92

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Solution

The fourth proportional to 988,020, 1,479,661.84 and 506,981.92 is: 759,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,020 : 1,479,661.84 = 506,981.92 : x
  2. Step 2: Convert to fraction form
    988,020/1,479,661.84 = 506,981.92/x
  3. Step 3: Cross multiply
    988,020x = 1,479,661.84 × 506,981.92
  4. Step 4: Simplify right side
    988,020x = 750,161,800,593.93
  5. Step 5: Solve for x
    x = 750,161,800,593.93/988,020
  6. Step 6: Final answer
    x = 759,257.71

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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.