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Finding the Fourth Proportional to 427,370.88, 638,268.16 and 363,510.40

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Solution

The fourth proportional to 427,370.88, 638,268.16 and 363,510.40 is: 542,894.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,370.88 : 638,268.16 = 363,510.40 : x
  2. Step 2: Convert to fraction form
    427,370.88/638,268.16 = 363,510.40/x
  3. Step 3: Cross multiply
    427,370.88x = 638,268.16 × 363,510.40
  4. Step 4: Simplify right side
    427,370.88x = 232,017,114,148.86
  5. Step 5: Solve for x
    x = 232,017,114,148.86/427,370.88
  6. Step 6: Final answer
    x = 542,894.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.