Home / 810,601.08-1,215,899.70-761,276.70

Finding the Fourth Proportional to 810,601.08, 1,215,899.70 and 761,276.70

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Solution

The fourth proportional to 810,601.08, 1,215,899.70 and 761,276.70 is: 1,141,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,601.08 : 1,215,899.70 = 761,276.70 : x
  2. Step 2: Convert to fraction form
    810,601.08/1,215,899.70 = 761,276.70/x
  3. Step 3: Cross multiply
    810,601.08x = 1,215,899.70 × 761,276.70
  4. Step 4: Simplify right side
    810,601.08x = 925,636,111,146.99
  5. Step 5: Solve for x
    x = 925,636,111,146.99/810,601.08
  6. Step 6: Final answer
    x = 1,141,913.25

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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.