Home / 1,386,282.80-1,913,049.18-774,444.32

Finding the Fourth Proportional to 1,386,282.80, 1,913,049.18 and 774,444.32

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Solution

The fourth proportional to 1,386,282.80, 1,913,049.18 and 774,444.32 is: 1,068,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,282.80 : 1,913,049.18 = 774,444.32 : x
  2. Step 2: Convert to fraction form
    1,386,282.80/1,913,049.18 = 774,444.32/x
  3. Step 3: Cross multiply
    1,386,282.80x = 1,913,049.18 × 774,444.32
  4. Step 4: Simplify right side
    1,386,282.80x = 1,481,550,071,331.66
  5. Step 5: Solve for x
    x = 1,481,550,071,331.66/1,386,282.80
  6. Step 6: Final answer
    x = 1,068,721.38

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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.