Home / 1,292,437.32-1,783,493.64-711,547.34

Finding the Fourth Proportional to 1,292,437.32, 1,783,493.64 and 711,547.34

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Solution

The fourth proportional to 1,292,437.32, 1,783,493.64 and 711,547.34 is: 981,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,437.32 : 1,783,493.64 = 711,547.34 : x
  2. Step 2: Convert to fraction form
    1,292,437.32/1,783,493.64 = 711,547.34/x
  3. Step 3: Cross multiply
    1,292,437.32x = 1,783,493.64 × 711,547.34
  4. Step 4: Simplify right side
    1,292,437.32x = 1,269,040,146,531.45
  5. Step 5: Solve for x
    x = 1,269,040,146,531.45/1,292,437.32
  6. Step 6: Final answer
    x = 981,896.86

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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.