Home / 521,842.72-720,130.02-292,409.44

Finding the Fourth Proportional to 521,842.72, 720,130.02 and 292,409.44

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Solution

The fourth proportional to 521,842.72, 720,130.02 and 292,409.44 is: 403,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,842.72 : 720,130.02 = 292,409.44 : x
  2. Step 2: Convert to fraction form
    521,842.72/720,130.02 = 292,409.44/x
  3. Step 3: Cross multiply
    521,842.72x = 720,130.02 × 292,409.44
  4. Step 4: Simplify right side
    521,842.72x = 210,572,815,875.39
  5. Step 5: Solve for x
    x = 210,572,815,875.39/521,842.72
  6. Step 6: Final answer
    x = 403,517.78

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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.