Home / 1,219,164.12-1,829,868.72-620,553

Finding the Fourth Proportional to 1,219,164.12, 1,829,868.72 and 620,553

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Solution

The fourth proportional to 1,219,164.12, 1,829,868.72 and 620,553 is: 931,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,164.12 : 1,829,868.72 = 620,553 : x
  2. Step 2: Convert to fraction form
    1,219,164.12/1,829,868.72 = 620,553/x
  3. Step 3: Cross multiply
    1,219,164.12x = 1,829,868.72 × 620,553
  4. Step 4: Simplify right side
    1,219,164.12x = 1,135,530,523,802.16
  5. Step 5: Solve for x
    x = 1,135,530,523,802.16/1,219,164.12
  6. Step 6: Final answer
    x = 931,400.87

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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.