Home / 902,787.72-1,354,201.02-429,520.92

Finding the Fourth Proportional to 902,787.72, 1,354,201.02 and 429,520.92

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Solution

The fourth proportional to 902,787.72, 1,354,201.02 and 429,520.92 is: 644,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,787.72 : 1,354,201.02 = 429,520.92 : x
  2. Step 2: Convert to fraction form
    902,787.72/1,354,201.02 = 429,520.92/x
  3. Step 3: Cross multiply
    902,787.72x = 1,354,201.02 × 429,520.92
  4. Step 4: Simplify right side
    902,787.72x = 581,657,667,975.34
  5. Step 5: Solve for x
    x = 581,657,667,975.34/902,787.72
  6. Step 6: Final answer
    x = 644,290.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.