Home / 884,379.38-1,220,486.80-497,316.60

Finding the Fourth Proportional to 884,379.38, 1,220,486.80 and 497,316.60

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Solution

The fourth proportional to 884,379.38, 1,220,486.80 and 497,316.60 is: 686,321.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,379.38 : 1,220,486.80 = 497,316.60 : x
  2. Step 2: Convert to fraction form
    884,379.38/1,220,486.80 = 497,316.60/x
  3. Step 3: Cross multiply
    884,379.38x = 1,220,486.80 × 497,316.60
  4. Step 4: Simplify right side
    884,379.38x = 606,968,345,720.88
  5. Step 5: Solve for x
    x = 606,968,345,720.88/884,379.38
  6. Step 6: Final answer
    x = 686,321.23

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1.5x scale

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.