Home / 779,814.20-1,169,721.30-665,652.80

Finding the Fourth Proportional to 779,814.20, 1,169,721.30 and 665,652.80

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Solution

The fourth proportional to 779,814.20, 1,169,721.30 and 665,652.80 is: 998,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,814.20 : 1,169,721.30 = 665,652.80 : x
  2. Step 2: Convert to fraction form
    779,814.20/1,169,721.30 = 665,652.80/x
  3. Step 3: Cross multiply
    779,814.20x = 1,169,721.30 × 665,652.80
  4. Step 4: Simplify right side
    779,814.20x = 778,628,258,564.64
  5. Step 5: Solve for x
    x = 778,628,258,564.64/779,814.20
  6. Step 6: Final answer
    x = 998,479.20

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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.