Home / 1,189,139.60-1,783,981.88-515,334

Finding the Fourth Proportional to 1,189,139.60, 1,783,981.88 and 515,334

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Solution

The fourth proportional to 1,189,139.60, 1,783,981.88 and 515,334 is: 773,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,139.60 : 1,783,981.88 = 515,334 : x
  2. Step 2: Convert to fraction form
    1,189,139.60/1,783,981.88 = 515,334/x
  3. Step 3: Cross multiply
    1,189,139.60x = 1,783,981.88 × 515,334
  4. Step 4: Simplify right side
    1,189,139.60x = 919,346,518,147.92
  5. Step 5: Solve for x
    x = 919,346,518,147.92/1,189,139.60
  6. Step 6: Final answer
    x = 773,119.08

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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.