Home / 925,030.88-1,276,536.75-517,130.78

Finding the Fourth Proportional to 925,030.88, 1,276,536.75 and 517,130.78

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Solution

The fourth proportional to 925,030.88, 1,276,536.75 and 517,130.78 is: 713,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,030.88 : 1,276,536.75 = 517,130.78 : x
  2. Step 2: Convert to fraction form
    925,030.88/1,276,536.75 = 517,130.78/x
  3. Step 3: Cross multiply
    925,030.88x = 1,276,536.75 × 517,130.78
  4. Step 4: Simplify right side
    925,030.88x = 660,136,438,843.48
  5. Step 5: Solve for x
    x = 660,136,438,843.48/925,030.88
  6. Step 6: Final answer
    x = 713,637.19

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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.