Home / 988,715.23-1,364,572.61-626,172.81

Finding the Fourth Proportional to 988,715.23, 1,364,572.61 and 626,172.81

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Solution

The fourth proportional to 988,715.23, 1,364,572.61 and 626,172.81 is: 864,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,715.23 : 1,364,572.61 = 626,172.81 : x
  2. Step 2: Convert to fraction form
    988,715.23/1,364,572.61 = 626,172.81/x
  3. Step 3: Cross multiply
    988,715.23x = 1,364,572.61 × 626,172.81
  4. Step 4: Simplify right side
    988,715.23x = 854,458,265,652.73
  5. Step 5: Solve for x
    x = 854,458,265,652.73/988,715.23
  6. Step 6: Final answer
    x = 864,210.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.