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Finding the Fourth Proportional to 389,611.60, 584,417.40 and 237,396.40

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Solution

The fourth proportional to 389,611.60, 584,417.40 and 237,396.40 is: 356,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,611.60 : 584,417.40 = 237,396.40 : x
  2. Step 2: Convert to fraction form
    389,611.60/584,417.40 = 237,396.40/x
  3. Step 3: Cross multiply
    389,611.60x = 584,417.40 × 237,396.40
  4. Step 4: Simplify right side
    389,611.60x = 138,738,586,857.36
  5. Step 5: Solve for x
    x = 138,738,586,857.36/389,611.60
  6. Step 6: Final answer
    x = 356,094.60

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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.