Home / 1,290,173.40-1,935,029.70-816,010.20

Finding the Fourth Proportional to 1,290,173.40, 1,935,029.70 and 816,010.20

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Solution

The fourth proportional to 1,290,173.40, 1,935,029.70 and 816,010.20 is: 1,223,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,173.40 : 1,935,029.70 = 816,010.20 : x
  2. Step 2: Convert to fraction form
    1,290,173.40/1,935,029.70 = 816,010.20/x
  3. Step 3: Cross multiply
    1,290,173.40x = 1,935,029.70 × 816,010.20
  4. Step 4: Simplify right side
    1,290,173.40x = 1,579,003,972,502.94
  5. Step 5: Solve for x
    x = 1,579,003,972,502.94/1,290,173.40
  6. Step 6: Final answer
    x = 1,223,869.58

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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.