Home / 808,201.40-1,214,051.70-778,458.20

Finding the Fourth Proportional to 808,201.40, 1,214,051.70 and 778,458.20

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Solution

The fourth proportional to 808,201.40, 1,214,051.70 and 778,458.20 is: 1,169,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,201.40 : 1,214,051.70 = 778,458.20 : x
  2. Step 2: Convert to fraction form
    808,201.40/1,214,051.70 = 778,458.20/x
  3. Step 3: Cross multiply
    808,201.40x = 1,214,051.70 × 778,458.20
  4. Step 4: Simplify right side
    808,201.40x = 945,088,501,088.94
  5. Step 5: Solve for x
    x = 945,088,501,088.94/808,201.40
  6. Step 6: Final answer
    x = 1,169,372.51

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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.