Home / 810,538.02-1,214,810.40-454,804.65

Finding the Fourth Proportional to 810,538.02, 1,214,810.40 and 454,804.65

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Solution

The fourth proportional to 810,538.02, 1,214,810.40 and 454,804.65 is: 681,647.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,538.02 : 1,214,810.40 = 454,804.65 : x
  2. Step 2: Convert to fraction form
    810,538.02/1,214,810.40 = 454,804.65/x
  3. Step 3: Cross multiply
    810,538.02x = 1,214,810.40 × 454,804.65
  4. Step 4: Simplify right side
    810,538.02x = 552,501,418,788.36
  5. Step 5: Solve for x
    x = 552,501,418,788.36/810,538.02
  6. Step 6: Final answer
    x = 681,647.75

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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.