Home / 1,561,123.20-2,338,963.20-717,945.60

Finding the Fourth Proportional to 1,561,123.20, 2,338,963.20 and 717,945.60

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Solution

The fourth proportional to 1,561,123.20, 2,338,963.20 and 717,945.60 is: 1,075,666.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,123.20 : 2,338,963.20 = 717,945.60 : x
  2. Step 2: Convert to fraction form
    1,561,123.20/2,338,963.20 = 717,945.60/x
  3. Step 3: Cross multiply
    1,561,123.20x = 2,338,963.20 × 717,945.60
  4. Step 4: Simplify right side
    1,561,123.20x = 1,679,248,338,001.92
  5. Step 5: Solve for x
    x = 1,679,248,338,001.92/1,561,123.20
  6. Step 6: Final answer
    x = 1,075,666.76

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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.