Home / 876,646.20-1,314,969.30-578,047.80

Finding the Fourth Proportional to 876,646.20, 1,314,969.30 and 578,047.80

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Solution

The fourth proportional to 876,646.20, 1,314,969.30 and 578,047.80 is: 867,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,646.20 : 1,314,969.30 = 578,047.80 : x
  2. Step 2: Convert to fraction form
    876,646.20/1,314,969.30 = 578,047.80/x
  3. Step 3: Cross multiply
    876,646.20x = 1,314,969.30 × 578,047.80
  4. Step 4: Simplify right side
    876,646.20x = 760,115,110,932.54
  5. Step 5: Solve for x
    x = 760,115,110,932.54/876,646.20
  6. Step 6: Final answer
    x = 867,071.70

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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.