Home / 1,386,268.80-1,913,029.83-774,430.32

Finding the Fourth Proportional to 1,386,268.80, 1,913,029.83 and 774,430.32

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Solution

The fourth proportional to 1,386,268.80, 1,913,029.83 and 774,430.32 is: 1,068,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,268.80 : 1,913,029.83 = 774,430.32 : x
  2. Step 2: Convert to fraction form
    1,386,268.80/1,913,029.83 = 774,430.32/x
  3. Step 3: Cross multiply
    1,386,268.80x = 1,913,029.83 × 774,430.32
  4. Step 4: Simplify right side
    1,386,268.80x = 1,481,508,303,416.45
  5. Step 5: Solve for x
    x = 1,481,508,303,416.45/1,386,268.80
  6. Step 6: Final answer
    x = 1,068,702.05

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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.