Home / 1,315,637.29-1,815,592.96-771,782.34

Finding the Fourth Proportional to 1,315,637.29, 1,815,592.96 and 771,782.34

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Solution

The fourth proportional to 1,315,637.29, 1,815,592.96 and 771,782.34 is: 1,065,067.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,637.29 : 1,815,592.96 = 771,782.34 : x
  2. Step 2: Convert to fraction form
    1,315,637.29/1,815,592.96 = 771,782.34/x
  3. Step 3: Cross multiply
    1,315,637.29x = 1,815,592.96 × 771,782.34
  4. Step 4: Simplify right side
    1,315,637.29x = 1,401,242,583,156.33
  5. Step 5: Solve for x
    x = 1,401,242,583,156.33/1,315,637.29
  6. Step 6: Final answer
    x = 1,065,067.55

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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.