Home / 1,065,239.80-1,595,786.10-643,262.20

Finding the Fourth Proportional to 1,065,239.80, 1,595,786.10 and 643,262.20

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Solution

The fourth proportional to 1,065,239.80, 1,595,786.10 and 643,262.20 is: 963,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,239.80 : 1,595,786.10 = 643,262.20 : x
  2. Step 2: Convert to fraction form
    1,065,239.80/1,595,786.10 = 643,262.20/x
  3. Step 3: Cross multiply
    1,065,239.80x = 1,595,786.10 × 643,262.20
  4. Step 4: Simplify right side
    1,065,239.80x = 1,026,508,877,415.42
  5. Step 5: Solve for x
    x = 1,026,508,877,415.42/1,065,239.80
  6. Step 6: Final answer
    x = 963,641.12

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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.