Home / 1,287,501.84-1,776,781.72-714,578.92

Finding the Fourth Proportional to 1,287,501.84, 1,776,781.72 and 714,578.92

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Solution

The fourth proportional to 1,287,501.84, 1,776,781.72 and 714,578.92 is: 986,135.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,501.84 : 1,776,781.72 = 714,578.92 : x
  2. Step 2: Convert to fraction form
    1,287,501.84/1,776,781.72 = 714,578.92/x
  3. Step 3: Cross multiply
    1,287,501.84x = 1,776,781.72 × 714,578.92
  4. Step 4: Simplify right side
    1,287,501.84x = 1,269,650,762,553.34
  5. Step 5: Solve for x
    x = 1,269,650,762,553.34/1,287,501.84
  6. Step 6: Final answer
    x = 986,135.11

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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.