Home / 808,663.86-1,212,979.23-359,262.90

Finding the Fourth Proportional to 808,663.86, 1,212,979.23 and 359,262.90

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Solution

The fourth proportional to 808,663.86, 1,212,979.23 and 359,262.90 is: 538,886.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,663.86 : 1,212,979.23 = 359,262.90 : x
  2. Step 2: Convert to fraction form
    808,663.86/1,212,979.23 = 359,262.90/x
  3. Step 3: Cross multiply
    808,663.86x = 1,212,979.23 × 359,262.90
  4. Step 4: Simplify right side
    808,663.86x = 435,778,435,809.57
  5. Step 5: Solve for x
    x = 435,778,435,809.57/808,663.86
  6. Step 6: Final answer
    x = 538,886.99

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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.