Home / 452,125.80-623,635.20-290,725.20

Finding the Fourth Proportional to 452,125.80, 623,635.20 and 290,725.20

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Solution

The fourth proportional to 452,125.80, 623,635.20 and 290,725.20 is: 401,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,125.80 : 623,635.20 = 290,725.20 : x
  2. Step 2: Convert to fraction form
    452,125.80/623,635.20 = 290,725.20/x
  3. Step 3: Cross multiply
    452,125.80x = 623,635.20 × 290,725.20
  4. Step 4: Simplify right side
    452,125.80x = 181,306,468,247.04
  5. Step 5: Solve for x
    x = 181,306,468,247.04/452,125.80
  6. Step 6: Final answer
    x = 401,008.90

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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.