Home / 1,360,138.74-1,877,007.18-779,350.36

Finding the Fourth Proportional to 1,360,138.74, 1,877,007.18 and 779,350.36

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Solution

The fourth proportional to 1,360,138.74, 1,877,007.18 and 779,350.36 is: 1,075,512.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,138.74 : 1,877,007.18 = 779,350.36 : x
  2. Step 2: Convert to fraction form
    1,360,138.74/1,877,007.18 = 779,350.36/x
  3. Step 3: Cross multiply
    1,360,138.74x = 1,877,007.18 × 779,350.36
  4. Step 4: Simplify right side
    1,360,138.74x = 1,462,846,218,821.17
  5. Step 5: Solve for x
    x = 1,462,846,218,821.17/1,360,138.74
  6. Step 6: Final answer
    x = 1,075,512.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.