Home / 1,118,401.70-1,677,165.15-408,064.10

Finding the Fourth Proportional to 1,118,401.70, 1,677,165.15 and 408,064.10

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Solution

The fourth proportional to 1,118,401.70, 1,677,165.15 and 408,064.10 is: 611,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,401.70 : 1,677,165.15 = 408,064.10 : x
  2. Step 2: Convert to fraction form
    1,118,401.70/1,677,165.15 = 408,064.10/x
  3. Step 3: Cross multiply
    1,118,401.70x = 1,677,165.15 × 408,064.10
  4. Step 4: Simplify right side
    1,118,401.70x = 684,390,887,486.12
  5. Step 5: Solve for x
    x = 684,390,887,486.12/1,118,401.70
  6. Step 6: Final answer
    x = 611,936.56

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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.