Home / 765,709.52-1,148,820.04-339,187.40

Finding the Fourth Proportional to 765,709.52, 1,148,820.04 and 339,187.40

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Solution

The fourth proportional to 765,709.52, 1,148,820.04 and 339,187.40 is: 508,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,709.52 : 1,148,820.04 = 339,187.40 : x
  2. Step 2: Convert to fraction form
    765,709.52/1,148,820.04 = 339,187.40/x
  3. Step 3: Cross multiply
    765,709.52x = 1,148,820.04 × 339,187.40
  4. Step 4: Simplify right side
    765,709.52x = 389,665,282,435.50
  5. Step 5: Solve for x
    x = 389,665,282,435.50/765,709.52
  6. Step 6: Final answer
    x = 508,894.39

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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.