Home / 1,561,148.40-2,338,223.40-1,281,212.40

Finding the Fourth Proportional to 1,561,148.40, 2,338,223.40 and 1,281,212.40

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Solution

The fourth proportional to 1,561,148.40, 2,338,223.40 and 1,281,212.40 is: 1,918,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,148.40 : 2,338,223.40 = 1,281,212.40 : x
  2. Step 2: Convert to fraction form
    1,561,148.40/2,338,223.40 = 1,281,212.40/x
  3. Step 3: Cross multiply
    1,561,148.40x = 2,338,223.40 × 1,281,212.40
  4. Step 4: Simplify right side
    1,561,148.40x = 2,995,760,814,050.16
  5. Step 5: Solve for x
    x = 2,995,760,814,050.16/1,561,148.40
  6. Step 6: Final answer
    x = 1,918,946.86

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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.