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Finding the Fourth Proportional to 502,235.83, 692,889.15 and 287,261.02

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Solution

The fourth proportional to 502,235.83, 692,889.15 and 287,261.02 is: 396,307.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,235.83 : 692,889.15 = 287,261.02 : x
  2. Step 2: Convert to fraction form
    502,235.83/692,889.15 = 287,261.02/x
  3. Step 3: Cross multiply
    502,235.83x = 692,889.15 × 287,261.02
  4. Step 4: Simplify right side
    502,235.83x = 199,040,043,975.93
  5. Step 5: Solve for x
    x = 199,040,043,975.93/502,235.83
  6. Step 6: Final answer
    x = 396,307.93

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1.5x scale

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.