Home / 1,380,906.80-2,071,360.20-434,567.60

Finding the Fourth Proportional to 1,380,906.80, 2,071,360.20 and 434,567.60

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Solution

The fourth proportional to 1,380,906.80, 2,071,360.20 and 434,567.60 is: 651,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,906.80 : 2,071,360.20 = 434,567.60 : x
  2. Step 2: Convert to fraction form
    1,380,906.80/2,071,360.20 = 434,567.60/x
  3. Step 3: Cross multiply
    1,380,906.80x = 2,071,360.20 × 434,567.60
  4. Step 4: Simplify right side
    1,380,906.80x = 900,146,030,849.52
  5. Step 5: Solve for x
    x = 900,146,030,849.52/1,380,906.80
  6. Step 6: Final answer
    x = 651,851.40

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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.