Home / 1,308,872.48-1,805,637.77-765,031.19

Finding the Fourth Proportional to 1,308,872.48, 1,805,637.77 and 765,031.19

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Solution

The fourth proportional to 1,308,872.48, 1,805,637.77 and 765,031.19 is: 1,055,388.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,872.48 : 1,805,637.77 = 765,031.19 : x
  2. Step 2: Convert to fraction form
    1,308,872.48/1,805,637.77 = 765,031.19/x
  3. Step 3: Cross multiply
    1,308,872.48x = 1,805,637.77 × 765,031.19
  4. Step 4: Simplify right side
    1,308,872.48x = 1,381,369,199,038.70
  5. Step 5: Solve for x
    x = 1,381,369,199,038.70/1,308,872.48
  6. Step 6: Final answer
    x = 1,055,388.68

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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.