Home / 778,239.96-1,167,714.60-399,426.68

Finding the Fourth Proportional to 778,239.96, 1,167,714.60 and 399,426.68

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Solution

The fourth proportional to 778,239.96, 1,167,714.60 and 399,426.68 is: 599,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,239.96 : 1,167,714.60 = 399,426.68 : x
  2. Step 2: Convert to fraction form
    778,239.96/1,167,714.60 = 399,426.68/x
  3. Step 3: Cross multiply
    778,239.96x = 1,167,714.60 × 399,426.68
  4. Step 4: Simplify right side
    778,239.96x = 466,416,364,088.73
  5. Step 5: Solve for x
    x = 466,416,364,088.73/778,239.96
  6. Step 6: Final answer
    x = 599,322.05

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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.