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Finding the Fourth Proportional to 601,554.60, 902,331.90 and 388,978.20

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Solution

The fourth proportional to 601,554.60, 902,331.90 and 388,978.20 is: 583,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,554.60 : 902,331.90 = 388,978.20 : x
  2. Step 2: Convert to fraction form
    601,554.60/902,331.90 = 388,978.20/x
  3. Step 3: Cross multiply
    601,554.60x = 902,331.90 × 388,978.20
  4. Step 4: Simplify right side
    601,554.60x = 350,987,438,264.58
  5. Step 5: Solve for x
    x = 350,987,438,264.58/601,554.60
  6. Step 6: Final answer
    x = 583,467.30

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Similar ratio
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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.