Home / 1,678,989.36-2,316,937.86-915,026.52

Finding the Fourth Proportional to 1,678,989.36, 2,316,937.86 and 915,026.52

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Solution

The fourth proportional to 1,678,989.36, 2,316,937.86 and 915,026.52 is: 1,262,699.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,989.36 : 2,316,937.86 = 915,026.52 : x
  2. Step 2: Convert to fraction form
    1,678,989.36/2,316,937.86 = 915,026.52/x
  3. Step 3: Cross multiply
    1,678,989.36x = 2,316,937.86 × 915,026.52
  4. Step 4: Simplify right side
    1,678,989.36x = 2,120,059,587,092.05
  5. Step 5: Solve for x
    x = 2,120,059,587,092.05/1,678,989.36
  6. Step 6: Final answer
    x = 1,262,699.83

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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.