Home / 1,215,593.76-1,677,543.30-786,621

Finding the Fourth Proportional to 1,215,593.76, 1,677,543.30 and 786,621

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Solution

The fourth proportional to 1,215,593.76, 1,677,543.30 and 786,621 is: 1,085,552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,593.76 : 1,677,543.30 = 786,621 : x
  2. Step 2: Convert to fraction form
    1,215,593.76/1,677,543.30 = 786,621/x
  3. Step 3: Cross multiply
    1,215,593.76x = 1,677,543.30 × 786,621
  4. Step 4: Simplify right side
    1,215,593.76x = 1,319,590,788,189.30
  5. Step 5: Solve for x
    x = 1,319,590,788,189.30/1,215,593.76
  6. Step 6: Final answer
    x = 1,085,552.45

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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.