Home / 1,191,157.92-1,643,792.54-647,283.42

Finding the Fourth Proportional to 1,191,157.92, 1,643,792.54 and 647,283.42

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Solution

The fourth proportional to 1,191,157.92, 1,643,792.54 and 647,283.42 is: 893,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,157.92 : 1,643,792.54 = 647,283.42 : x
  2. Step 2: Convert to fraction form
    1,191,157.92/1,643,792.54 = 647,283.42/x
  3. Step 3: Cross multiply
    1,191,157.92x = 1,643,792.54 × 647,283.42
  4. Step 4: Simplify right side
    1,191,157.92x = 1,063,999,653,825.27
  5. Step 5: Solve for x
    x = 1,063,999,653,825.27/1,191,157.92
  6. Step 6: Final answer
    x = 893,248.19

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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.