Home / 1,249,278.75-1,874,664.45-1,147,639.74

Finding the Fourth Proportional to 1,249,278.75, 1,874,664.45 and 1,147,639.74

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Solution

The fourth proportional to 1,249,278.75, 1,874,664.45 and 1,147,639.74 is: 1,722,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,278.75 : 1,874,664.45 = 1,147,639.74 : x
  2. Step 2: Convert to fraction form
    1,249,278.75/1,874,664.45 = 1,147,639.74/x
  3. Step 3: Cross multiply
    1,249,278.75x = 1,874,664.45 × 1,147,639.74
  4. Step 4: Simplify right side
    1,249,278.75x = 2,151,439,421,985.24
  5. Step 5: Solve for x
    x = 2,151,439,421,985.24/1,249,278.75
  6. Step 6: Final answer
    x = 1,722,145.22

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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.