Home / 501,913.61-692,567.67-287,012.16

Finding the Fourth Proportional to 501,913.61, 692,567.67 and 287,012.16

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Solution

The fourth proportional to 501,913.61, 692,567.67 and 287,012.16 is: 396,034.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,913.61 : 692,567.67 = 287,012.16 : x
  2. Step 2: Convert to fraction form
    501,913.61/692,567.67 = 287,012.16/x
  3. Step 3: Cross multiply
    501,913.61x = 692,567.67 × 287,012.16
  4. Step 4: Simplify right side
    501,913.61x = 198,775,342,374.72
  5. Step 5: Solve for x
    x = 198,775,342,374.72/501,913.61
  6. Step 6: Final answer
    x = 396,034.97

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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.