Home / 1,538,045.55-2,307,068.33-820,600.20

Finding the Fourth Proportional to 1,538,045.55, 2,307,068.33 and 820,600.20

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Solution

The fourth proportional to 1,538,045.55, 2,307,068.33 and 820,600.20 is: 1,230,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538,045.55 : 2,307,068.33 = 820,600.20 : x
  2. Step 2: Convert to fraction form
    1,538,045.55/2,307,068.33 = 820,600.20/x
  3. Step 3: Cross multiply
    1,538,045.55x = 2,307,068.33 × 820,600.20
  4. Step 4: Simplify right side
    1,538,045.55x = 1,893,180,728,908.67
  5. Step 5: Solve for x
    x = 1,893,180,728,908.67/1,538,045.55
  6. Step 6: Final answer
    x = 1,230,900.30

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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.