Home / 419,938.95-579,490.77-238,625.72

Finding the Fourth Proportional to 419,938.95, 579,490.77 and 238,625.72

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Solution

The fourth proportional to 419,938.95, 579,490.77 and 238,625.72 is: 329,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,938.95 : 579,490.77 = 238,625.72 : x
  2. Step 2: Convert to fraction form
    419,938.95/579,490.77 = 238,625.72/x
  3. Step 3: Cross multiply
    419,938.95x = 579,490.77 × 238,625.72
  4. Step 4: Simplify right side
    419,938.95x = 138,281,402,224.60
  5. Step 5: Solve for x
    x = 138,281,402,224.60/419,938.95
  6. Step 6: Final answer
    x = 329,289.30

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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.