Home / 485,829.01-670,096.96-421,182.69

Finding the Fourth Proportional to 485,829.01, 670,096.96 and 421,182.69

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Solution

The fourth proportional to 485,829.01, 670,096.96 and 421,182.69 is: 580,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,829.01 : 670,096.96 = 421,182.69 : x
  2. Step 2: Convert to fraction form
    485,829.01/670,096.96 = 421,182.69/x
  3. Step 3: Cross multiply
    485,829.01x = 670,096.96 × 421,182.69
  4. Step 4: Simplify right side
    485,829.01x = 282,233,240,173.62
  5. Step 5: Solve for x
    x = 282,233,240,173.62/485,829.01
  6. Step 6: Final answer
    x = 580,931.22

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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.