Home / 501,293.49-691,823.07-286,442.61

Finding the Fourth Proportional to 501,293.49, 691,823.07 and 286,442.61

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Solution

The fourth proportional to 501,293.49, 691,823.07 and 286,442.61 is: 395,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,293.49 : 691,823.07 = 286,442.61 : x
  2. Step 2: Convert to fraction form
    501,293.49/691,823.07 = 286,442.61/x
  3. Step 3: Cross multiply
    501,293.49x = 691,823.07 × 286,442.61
  4. Step 4: Simplify right side
    501,293.49x = 198,167,605,829.01
  5. Step 5: Solve for x
    x = 198,167,605,829.01/501,293.49
  6. Step 6: Final answer
    x = 395,312.55

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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.