Home / 1,490.04-2,235.08-450.15

Finding the Fourth Proportional to 1,490.04, 2,235.08 and 450.15

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Solution

The fourth proportional to 1,490.04, 2,235.08 and 450.15 is: 675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.04 : 2,235.08 = 450.15 : x
  2. Step 2: Convert to fraction form
    1,490.04/2,235.08 = 450.15/x
  3. Step 3: Cross multiply
    1,490.04x = 2,235.08 × 450.15
  4. Step 4: Simplify right side
    1,490.04x = 1,006,119.01
  5. Step 5: Solve for x
    x = 1,006,119.01/1,490.04
  6. Step 6: Final answer
    x = 675.23

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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.