Home / 869,012.31-1,301,837.09-488,777.75

Finding the Fourth Proportional to 869,012.31, 1,301,837.09 and 488,777.75

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Solution

The fourth proportional to 869,012.31, 1,301,837.09 and 488,777.75 is: 732,220.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,012.31 : 1,301,837.09 = 488,777.75 : x
  2. Step 2: Convert to fraction form
    869,012.31/1,301,837.09 = 488,777.75/x
  3. Step 3: Cross multiply
    869,012.31x = 1,301,837.09 × 488,777.75
  4. Step 4: Simplify right side
    869,012.31x = 636,309,001,272.86
  5. Step 5: Solve for x
    x = 636,309,001,272.86/869,012.31
  6. Step 6: Final answer
    x = 732,220.93

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1.5x scale

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.