Home / 1,285,117.20-1,927,770.30-338,481

Finding the Fourth Proportional to 1,285,117.20, 1,927,770.30 and 338,481

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Solution

The fourth proportional to 1,285,117.20, 1,927,770.30 and 338,481 is: 507,746.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,117.20 : 1,927,770.30 = 338,481 : x
  2. Step 2: Convert to fraction form
    1,285,117.20/1,927,770.30 = 338,481/x
  3. Step 3: Cross multiply
    1,285,117.20x = 1,927,770.30 × 338,481
  4. Step 4: Simplify right side
    1,285,117.20x = 652,513,618,914.30
  5. Step 5: Solve for x
    x = 652,513,618,914.30/1,285,117.20
  6. Step 6: Final answer
    x = 507,746.39

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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.