Home / 1,487,960.20-2,231,940.30-890,763.40

Finding the Fourth Proportional to 1,487,960.20, 2,231,940.30 and 890,763.40

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Solution

The fourth proportional to 1,487,960.20, 2,231,940.30 and 890,763.40 is: 1,336,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,960.20 : 2,231,940.30 = 890,763.40 : x
  2. Step 2: Convert to fraction form
    1,487,960.20/2,231,940.30 = 890,763.40/x
  3. Step 3: Cross multiply
    1,487,960.20x = 2,231,940.30 × 890,763.40
  4. Step 4: Simplify right side
    1,487,960.20x = 1,988,130,730,225.02
  5. Step 5: Solve for x
    x = 1,988,130,730,225.02/1,487,960.20
  6. Step 6: Final answer
    x = 1,336,145.10

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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.