Home / 988,658.30-1,486,158.60-918,455.60

Finding the Fourth Proportional to 988,658.30, 1,486,158.60 and 918,455.60

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Solution

The fourth proportional to 988,658.30, 1,486,158.60 and 918,455.60 is: 1,380,629.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,658.30 : 1,486,158.60 = 918,455.60 : x
  2. Step 2: Convert to fraction form
    988,658.30/1,486,158.60 = 918,455.60/x
  3. Step 3: Cross multiply
    988,658.30x = 1,486,158.60 × 918,455.60
  4. Step 4: Simplify right side
    988,658.30x = 1,364,970,688,658.16
  5. Step 5: Solve for x
    x = 1,364,970,688,658.16/988,658.30
  6. Step 6: Final answer
    x = 1,380,629.37

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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.