Home / 1,400,514.90-2,100,772.35-389,634.90

Finding the Fourth Proportional to 1,400,514.90, 2,100,772.35 and 389,634.90

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Solution

The fourth proportional to 1,400,514.90, 2,100,772.35 and 389,634.90 is: 584,452.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,514.90 : 2,100,772.35 = 389,634.90 : x
  2. Step 2: Convert to fraction form
    1,400,514.90/2,100,772.35 = 389,634.90/x
  3. Step 3: Cross multiply
    1,400,514.90x = 2,100,772.35 × 389,634.90
  4. Step 4: Simplify right side
    1,400,514.90x = 818,534,224,515.02
  5. Step 5: Solve for x
    x = 818,534,224,515.02/1,400,514.90
  6. Step 6: Final answer
    x = 584,452.35

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Double scale
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Similar ratio
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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.