Home / 389,618.10-584,427.15-123,460.20

Finding the Fourth Proportional to 389,618.10, 584,427.15 and 123,460.20

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Solution

The fourth proportional to 389,618.10, 584,427.15 and 123,460.20 is: 185,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,618.10 : 584,427.15 = 123,460.20 : x
  2. Step 2: Convert to fraction form
    389,618.10/584,427.15 = 123,460.20/x
  3. Step 3: Cross multiply
    389,618.10x = 584,427.15 × 123,460.20
  4. Step 4: Simplify right side
    389,618.10x = 72,153,492,824.43
  5. Step 5: Solve for x
    x = 72,153,492,824.43/389,618.10
  6. Step 6: Final answer
    x = 185,190.30

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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.