Home / 1,420,654.83-1,960,478.94-776,058.45

Finding the Fourth Proportional to 1,420,654.83, 1,960,478.94 and 776,058.45

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Solution

The fourth proportional to 1,420,654.83, 1,960,478.94 and 776,058.45 is: 1,070,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,654.83 : 1,960,478.94 = 776,058.45 : x
  2. Step 2: Convert to fraction form
    1,420,654.83/1,960,478.94 = 776,058.45/x
  3. Step 3: Cross multiply
    1,420,654.83x = 1,960,478.94 × 776,058.45
  4. Step 4: Simplify right side
    1,420,654.83x = 1,521,446,247,434.04
  5. Step 5: Solve for x
    x = 1,521,446,247,434.04/1,420,654.83
  6. Step 6: Final answer
    x = 1,070,947.15

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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.