Home / 501,498.49-692,067.90-286,643.16

Finding the Fourth Proportional to 501,498.49, 692,067.90 and 286,643.16

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Solution

The fourth proportional to 501,498.49, 692,067.90 and 286,643.16 is: 395,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,498.49 : 692,067.90 = 286,643.16 : x
  2. Step 2: Convert to fraction form
    501,498.49/692,067.90 = 286,643.16/x
  3. Step 3: Cross multiply
    501,498.49x = 692,067.90 × 286,643.16
  4. Step 4: Simplify right side
    501,498.49x = 198,376,532,744.12
  5. Step 5: Solve for x
    x = 198,376,532,744.12/501,498.49
  6. Step 6: Final answer
    x = 395,567.56

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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.