Home / 1,284,242.40-1,924,981.20-485,215.20

Finding the Fourth Proportional to 1,284,242.40, 1,924,981.20 and 485,215.20

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Solution

The fourth proportional to 1,284,242.40, 1,924,981.20 and 485,215.20 is: 727,300.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,242.40 : 1,924,981.20 = 485,215.20 : x
  2. Step 2: Convert to fraction form
    1,284,242.40/1,924,981.20 = 485,215.20/x
  3. Step 3: Cross multiply
    1,284,242.40x = 1,924,981.20 × 485,215.20
  4. Step 4: Simplify right side
    1,284,242.40x = 934,030,137,954.24
  5. Step 5: Solve for x
    x = 934,030,137,954.24/1,284,242.40
  6. Step 6: Final answer
    x = 727,300.50

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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.