Home / 1,147,806.05-1,584,145.55-664,686.81

Finding the Fourth Proportional to 1,147,806.05, 1,584,145.55 and 664,686.81

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Solution

The fourth proportional to 1,147,806.05, 1,584,145.55 and 664,686.81 is: 917,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,806.05 : 1,584,145.55 = 664,686.81 : x
  2. Step 2: Convert to fraction form
    1,147,806.05/1,584,145.55 = 664,686.81/x
  3. Step 3: Cross multiply
    1,147,806.05x = 1,584,145.55 × 664,686.81
  4. Step 4: Simplify right side
    1,147,806.05x = 1,052,960,653,866.91
  5. Step 5: Solve for x
    x = 1,052,960,653,866.91/1,147,806.05
  6. Step 6: Final answer
    x = 917,368.10

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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.