Home / 1,292,118.82-1,938,025.59-345,562.90

Finding the Fourth Proportional to 1,292,118.82, 1,938,025.59 and 345,562.90

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Solution

The fourth proportional to 1,292,118.82, 1,938,025.59 and 345,562.90 is: 518,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,118.82 : 1,938,025.59 = 345,562.90 : x
  2. Step 2: Convert to fraction form
    1,292,118.82/1,938,025.59 = 345,562.90/x
  3. Step 3: Cross multiply
    1,292,118.82x = 1,938,025.59 × 345,562.90
  4. Step 4: Simplify right side
    1,292,118.82x = 669,709,743,154.61
  5. Step 5: Solve for x
    x = 669,709,743,154.61/1,292,118.82
  6. Step 6: Final answer
    x = 518,303.53

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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.