Home / 1,421,148.60-1,961,161.29-776,553.93

Finding the Fourth Proportional to 1,421,148.60, 1,961,161.29 and 776,553.93

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Solution

The fourth proportional to 1,421,148.60, 1,961,161.29 and 776,553.93 is: 1,071,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,148.60 : 1,961,161.29 = 776,553.93 : x
  2. Step 2: Convert to fraction form
    1,421,148.60/1,961,161.29 = 776,553.93/x
  3. Step 3: Cross multiply
    1,421,148.60x = 1,961,161.29 × 776,553.93
  4. Step 4: Simplify right side
    1,421,148.60x = 1,522,947,507,113.37
  5. Step 5: Solve for x
    x = 1,522,947,507,113.37/1,421,148.60
  6. Step 6: Final answer
    x = 1,071,631.43

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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.