Home / 1,281,365.94-1,767,991.20-765,019.26

Finding the Fourth Proportional to 1,281,365.94, 1,767,991.20 and 765,019.26

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Solution

The fourth proportional to 1,281,365.94, 1,767,991.20 and 765,019.26 is: 1,055,551.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,365.94 : 1,767,991.20 = 765,019.26 : x
  2. Step 2: Convert to fraction form
    1,281,365.94/1,767,991.20 = 765,019.26/x
  3. Step 3: Cross multiply
    1,281,365.94x = 1,767,991.20 × 765,019.26
  4. Step 4: Simplify right side
    1,281,365.94x = 1,352,547,319,510.51
  5. Step 5: Solve for x
    x = 1,352,547,319,510.51/1,281,365.94
  6. Step 6: Final answer
    x = 1,055,551.17

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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.