Home / 1,115,352.86-1,671,658.76-515,502.50

Finding the Fourth Proportional to 1,115,352.86, 1,671,658.76 and 515,502.50

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Solution

The fourth proportional to 1,115,352.86, 1,671,658.76 and 515,502.50 is: 772,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,352.86 : 1,671,658.76 = 515,502.50 : x
  2. Step 2: Convert to fraction form
    1,115,352.86/1,671,658.76 = 515,502.50/x
  3. Step 3: Cross multiply
    1,115,352.86x = 1,671,658.76 × 515,502.50
  4. Step 4: Simplify right side
    1,115,352.86x = 861,744,262,857.36
  5. Step 5: Solve for x
    x = 861,744,262,857.36/1,115,352.86
  6. Step 6: Final answer
    x = 772,620.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.