Home / 1,989,513.89-2,984,267.12-623,392.18

Finding the Fourth Proportional to 1,989,513.89, 2,984,267.12 and 623,392.18

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Solution

The fourth proportional to 1,989,513.89, 2,984,267.12 and 623,392.18 is: 935,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,513.89 : 2,984,267.12 = 623,392.18 : x
  2. Step 2: Convert to fraction form
    1,989,513.89/2,984,267.12 = 623,392.18/x
  3. Step 3: Cross multiply
    1,989,513.89x = 2,984,267.12 × 623,392.18
  4. Step 4: Simplify right side
    1,989,513.89x = 1,860,368,795,354.58
  5. Step 5: Solve for x
    x = 1,860,368,795,354.58/1,989,513.89
  6. Step 6: Final answer
    x = 935,087.11

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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.