Home / 1,315,805.94-1,815,710.85-742,902.66

Finding the Fourth Proportional to 1,315,805.94, 1,815,710.85 and 742,902.66

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Solution

The fourth proportional to 1,315,805.94, 1,815,710.85 and 742,902.66 is: 1,025,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,805.94 : 1,815,710.85 = 742,902.66 : x
  2. Step 2: Convert to fraction form
    1,315,805.94/1,815,710.85 = 742,902.66/x
  3. Step 3: Cross multiply
    1,315,805.94x = 1,815,710.85 × 742,902.66
  4. Step 4: Simplify right side
    1,315,805.94x = 1,348,896,420,255.86
  5. Step 5: Solve for x
    x = 1,348,896,420,255.86/1,315,805.94
  6. Step 6: Final answer
    x = 1,025,148.45

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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.