Home / 1,318,632.75-1,819,714.14-715,020.75

Finding the Fourth Proportional to 1,318,632.75, 1,819,714.14 and 715,020.75

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Solution

The fourth proportional to 1,318,632.75, 1,819,714.14 and 715,020.75 is: 986,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,632.75 : 1,819,714.14 = 715,020.75 : x
  2. Step 2: Convert to fraction form
    1,318,632.75/1,819,714.14 = 715,020.75/x
  3. Step 3: Cross multiply
    1,318,632.75x = 1,819,714.14 × 715,020.75
  4. Step 4: Simplify right side
    1,318,632.75x = 1,301,133,369,168.41
  5. Step 5: Solve for x
    x = 1,301,133,369,168.41/1,318,632.75
  6. Step 6: Final answer
    x = 986,729.15

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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.