Home / 1,249,121.40-1,874,556.90-539,658.60

Finding the Fourth Proportional to 1,249,121.40, 1,874,556.90 and 539,658.60

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Solution

The fourth proportional to 1,249,121.40, 1,874,556.90 and 539,658.60 is: 809,865.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,121.40 : 1,874,556.90 = 539,658.60 : x
  2. Step 2: Convert to fraction form
    1,249,121.40/1,874,556.90 = 539,658.60/x
  3. Step 3: Cross multiply
    1,249,121.40x = 1,874,556.90 × 539,658.60
  4. Step 4: Simplify right side
    1,249,121.40x = 1,011,620,752,274.34
  5. Step 5: Solve for x
    x = 1,011,620,752,274.34/1,249,121.40
  6. Step 6: Final answer
    x = 809,865.84

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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.