Home / 1,119,792.20-1,679,688.30-694,639.40

Finding the Fourth Proportional to 1,119,792.20, 1,679,688.30 and 694,639.40

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Solution

The fourth proportional to 1,119,792.20, 1,679,688.30 and 694,639.40 is: 1,041,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,792.20 : 1,679,688.30 = 694,639.40 : x
  2. Step 2: Convert to fraction form
    1,119,792.20/1,679,688.30 = 694,639.40/x
  3. Step 3: Cross multiply
    1,119,792.20x = 1,679,688.30 × 694,639.40
  4. Step 4: Simplify right side
    1,119,792.20x = 1,166,777,672,899.02
  5. Step 5: Solve for x
    x = 1,166,777,672,899.02/1,119,792.20
  6. Step 6: Final answer
    x = 1,041,959.10

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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.