Home / 1,284,490.32-1,772,574.48-711,518.48

Finding the Fourth Proportional to 1,284,490.32, 1,772,574.48 and 711,518.48

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Solution

The fourth proportional to 1,284,490.32, 1,772,574.48 and 711,518.48 is: 981,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,490.32 : 1,772,574.48 = 711,518.48 : x
  2. Step 2: Convert to fraction form
    1,284,490.32/1,772,574.48 = 711,518.48/x
  3. Step 3: Cross multiply
    1,284,490.32x = 1,772,574.48 × 711,518.48
  4. Step 4: Simplify right side
    1,284,490.32x = 1,261,219,499,696.39
  5. Step 5: Solve for x
    x = 1,261,219,499,696.39/1,284,490.32
  6. Step 6: Final answer
    x = 981,883.23

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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.