Home / 1,078,221.80-1,614,999.90-700,308.20

Finding the Fourth Proportional to 1,078,221.80, 1,614,999.90 and 700,308.20

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Solution

The fourth proportional to 1,078,221.80, 1,614,999.90 and 700,308.20 is: 1,048,947.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,221.80 : 1,614,999.90 = 700,308.20 : x
  2. Step 2: Convert to fraction form
    1,078,221.80/1,614,999.90 = 700,308.20/x
  3. Step 3: Cross multiply
    1,078,221.80x = 1,614,999.90 × 700,308.20
  4. Step 4: Simplify right side
    1,078,221.80x = 1,130,997,672,969.18
  5. Step 5: Solve for x
    x = 1,130,997,672,969.18/1,078,221.80
  6. Step 6: Final answer
    x = 1,048,947.14

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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.