Home / 1,208,421.42-1,667,583.38-664,555.53

Finding the Fourth Proportional to 1,208,421.42, 1,667,583.38 and 664,555.53

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Solution

The fourth proportional to 1,208,421.42, 1,667,583.38 and 664,555.53 is: 917,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,421.42 : 1,667,583.38 = 664,555.53 : x
  2. Step 2: Convert to fraction form
    1,208,421.42/1,667,583.38 = 664,555.53/x
  3. Step 3: Cross multiply
    1,208,421.42x = 1,667,583.38 × 664,555.53
  4. Step 4: Simplify right side
    1,208,421.42x = 1,108,201,748,577.17
  5. Step 5: Solve for x
    x = 1,108,201,748,577.17/1,208,421.42
  6. Step 6: Final answer
    x = 917,065.63

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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.