Home / 1,120,801.60-1,681,421.10-446,768.20

Finding the Fourth Proportional to 1,120,801.60, 1,681,421.10 and 446,768.20

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Solution

The fourth proportional to 1,120,801.60, 1,681,421.10 and 446,768.20 is: 670,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,801.60 : 1,681,421.10 = 446,768.20 : x
  2. Step 2: Convert to fraction form
    1,120,801.60/1,681,421.10 = 446,768.20/x
  3. Step 3: Cross multiply
    1,120,801.60x = 1,681,421.10 × 446,768.20
  4. Step 4: Simplify right side
    1,120,801.60x = 751,205,478,289.02
  5. Step 5: Solve for x
    x = 751,205,478,289.02/1,120,801.60
  6. Step 6: Final answer
    x = 670,239.48

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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.