Home / 763,857.78-1,054,153.65-522,646.26

Finding the Fourth Proportional to 763,857.78, 1,054,153.65 and 522,646.26

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Solution

The fourth proportional to 763,857.78, 1,054,153.65 and 522,646.26 is: 721,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,857.78 : 1,054,153.65 = 522,646.26 : x
  2. Step 2: Convert to fraction form
    763,857.78/1,054,153.65 = 522,646.26/x
  3. Step 3: Cross multiply
    763,857.78x = 1,054,153.65 × 522,646.26
  4. Step 4: Simplify right side
    763,857.78x = 550,949,462,637.85
  5. Step 5: Solve for x
    x = 550,949,462,637.85/763,857.78
  6. Step 6: Final answer
    x = 721,272.31

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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.