Home / 851,012.40-1,174,404.26-469,040.16

Finding the Fourth Proportional to 851,012.40, 1,174,404.26 and 469,040.16

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Solution

The fourth proportional to 851,012.40, 1,174,404.26 and 469,040.16 is: 647,279.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,012.40 : 1,174,404.26 = 469,040.16 : x
  2. Step 2: Convert to fraction form
    851,012.40/1,174,404.26 = 469,040.16/x
  3. Step 3: Cross multiply
    851,012.40x = 1,174,404.26 × 469,040.16
  4. Step 4: Simplify right side
    851,012.40x = 550,842,762,015.08
  5. Step 5: Solve for x
    x = 550,842,762,015.08/851,012.40
  6. Step 6: Final answer
    x = 647,279.36

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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.