Home / 1,137,257.09-1,570,045.31-775,212.81

Finding the Fourth Proportional to 1,137,257.09, 1,570,045.31 and 775,212.81

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Solution

The fourth proportional to 1,137,257.09, 1,570,045.31 and 775,212.81 is: 1,070,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,257.09 : 1,570,045.31 = 775,212.81 : x
  2. Step 2: Convert to fraction form
    1,137,257.09/1,570,045.31 = 775,212.81/x
  3. Step 3: Cross multiply
    1,137,257.09x = 1,570,045.31 × 775,212.81
  4. Step 4: Simplify right side
    1,137,257.09x = 1,217,119,236,592.42
  5. Step 5: Solve for x
    x = 1,217,119,236,592.42/1,137,257.09
  6. Step 6: Final answer
    x = 1,070,223.48

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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.