Home / 1,113,881.40-1,670,822.10-642,022.20

Finding the Fourth Proportional to 1,113,881.40, 1,670,822.10 and 642,022.20

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Solution

The fourth proportional to 1,113,881.40, 1,670,822.10 and 642,022.20 is: 963,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,881.40 : 1,670,822.10 = 642,022.20 : x
  2. Step 2: Convert to fraction form
    1,113,881.40/1,670,822.10 = 642,022.20/x
  3. Step 3: Cross multiply
    1,113,881.40x = 1,670,822.10 × 642,022.20
  4. Step 4: Simplify right side
    1,113,881.40x = 1,072,704,880,450.62
  5. Step 5: Solve for x
    x = 1,072,704,880,450.62/1,113,881.40
  6. Step 6: Final answer
    x = 963,033.30

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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.