Home / 779,761.06-1,169,406.15-405,579.94

Finding the Fourth Proportional to 779,761.06, 1,169,406.15 and 405,579.94

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Solution

The fourth proportional to 779,761.06, 1,169,406.15 and 405,579.94 is: 608,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,761.06 : 1,169,406.15 = 405,579.94 : x
  2. Step 2: Convert to fraction form
    779,761.06/1,169,406.15 = 405,579.94/x
  3. Step 3: Cross multiply
    779,761.06x = 1,169,406.15 × 405,579.94
  4. Step 4: Simplify right side
    779,761.06x = 474,287,676,152.63
  5. Step 5: Solve for x
    x = 474,287,676,152.63/779,761.06
  6. Step 6: Final answer
    x = 608,247.45

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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.