Home / 802,386.51-1,107,406.79-496,561.39

Finding the Fourth Proportional to 802,386.51, 1,107,406.79 and 496,561.39

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Solution

The fourth proportional to 802,386.51, 1,107,406.79 and 496,561.39 is: 685,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,386.51 : 1,107,406.79 = 496,561.39 : x
  2. Step 2: Convert to fraction form
    802,386.51/1,107,406.79 = 496,561.39/x
  3. Step 3: Cross multiply
    802,386.51x = 1,107,406.79 × 496,561.39
  4. Step 4: Simplify right side
    802,386.51x = 549,895,451,548.62
  5. Step 5: Solve for x
    x = 549,895,451,548.62/802,386.51
  6. Step 6: Final answer
    x = 685,324.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.