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Finding the Fourth Proportional to 572,073.88, 789,374.28 and 342,577.42

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Solution

The fourth proportional to 572,073.88, 789,374.28 and 342,577.42 is: 472,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,073.88 : 789,374.28 = 342,577.42 : x
  2. Step 2: Convert to fraction form
    572,073.88/789,374.28 = 342,577.42/x
  3. Step 3: Cross multiply
    572,073.88x = 789,374.28 × 342,577.42
  4. Step 4: Simplify right side
    572,073.88x = 270,421,804,256.76
  5. Step 5: Solve for x
    x = 270,421,804,256.76/572,073.88
  6. Step 6: Final answer
    x = 472,704.34

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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.