Home / 1,317,916.80-1,818,724.32-714,304.96

Finding the Fourth Proportional to 1,317,916.80, 1,818,724.32 and 714,304.96

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Solution

The fourth proportional to 1,317,916.80, 1,818,724.32 and 714,304.96 is: 985,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,916.80 : 1,818,724.32 = 714,304.96 : x
  2. Step 2: Convert to fraction form
    1,317,916.80/1,818,724.32 = 714,304.96/x
  3. Step 3: Cross multiply
    1,317,916.80x = 1,818,724.32 × 714,304.96
  4. Step 4: Simplify right side
    1,317,916.80x = 1,299,123,802,648.63
  5. Step 5: Solve for x
    x = 1,299,123,802,648.63/1,317,916.80
  6. Step 6: Final answer
    x = 985,740.38

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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.