Home / 1,007,120.70-1,390,120.02-658,311.84

Finding the Fourth Proportional to 1,007,120.70, 1,390,120.02 and 658,311.84

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Solution

The fourth proportional to 1,007,120.70, 1,390,120.02 and 658,311.84 is: 908,662.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,120.70 : 1,390,120.02 = 658,311.84 : x
  2. Step 2: Convert to fraction form
    1,007,120.70/1,390,120.02 = 658,311.84/x
  3. Step 3: Cross multiply
    1,007,120.70x = 1,390,120.02 × 658,311.84
  4. Step 4: Simplify right side
    1,007,120.70x = 915,132,468,187.04
  5. Step 5: Solve for x
    x = 915,132,468,187.04/1,007,120.70
  6. Step 6: Final answer
    x = 908,662.16

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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.