Home / 980,778.48-1,353,587.70-572,982.26

Finding the Fourth Proportional to 980,778.48, 1,353,587.70 and 572,982.26

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Solution

The fourth proportional to 980,778.48, 1,353,587.70 and 572,982.26 is: 790,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,778.48 : 1,353,587.70 = 572,982.26 : x
  2. Step 2: Convert to fraction form
    980,778.48/1,353,587.70 = 572,982.26/x
  3. Step 3: Cross multiply
    980,778.48x = 1,353,587.70 × 572,982.26
  4. Step 4: Simplify right side
    980,778.48x = 775,581,742,448.88
  5. Step 5: Solve for x
    x = 775,581,742,448.88/980,778.48
  6. Step 6: Final answer
    x = 790,781.77

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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.