Home / 1,113,867.40-1,670,801.10-272,408.20

Finding the Fourth Proportional to 1,113,867.40, 1,670,801.10 and 272,408.20

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Solution

The fourth proportional to 1,113,867.40, 1,670,801.10 and 272,408.20 is: 408,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,867.40 : 1,670,801.10 = 272,408.20 : x
  2. Step 2: Convert to fraction form
    1,113,867.40/1,670,801.10 = 272,408.20/x
  3. Step 3: Cross multiply
    1,113,867.40x = 1,670,801.10 × 272,408.20
  4. Step 4: Simplify right side
    1,113,867.40x = 455,139,920,209.02
  5. Step 5: Solve for x
    x = 455,139,920,209.02/1,113,867.40
  6. Step 6: Final answer
    x = 408,612.30

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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.