Home / 1,201,365.92-1,657,721.22-717,828.86

Finding the Fourth Proportional to 1,201,365.92, 1,657,721.22 and 717,828.86

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Solution

The fourth proportional to 1,201,365.92, 1,657,721.22 and 717,828.86 is: 990,505.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,365.92 : 1,657,721.22 = 717,828.86 : x
  2. Step 2: Convert to fraction form
    1,201,365.92/1,657,721.22 = 717,828.86/x
  3. Step 3: Cross multiply
    1,201,365.92x = 1,657,721.22 × 717,828.86
  4. Step 4: Simplify right side
    1,201,365.92x = 1,189,960,133,550.41
  5. Step 5: Solve for x
    x = 1,189,960,133,550.41/1,201,365.92
  6. Step 6: Final answer
    x = 990,505.98

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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.