Home / 3,119,259.70-4,678,889.55-1,521,000.10

Finding the Fourth Proportional to 3,119,259.70, 4,678,889.55 and 1,521,000.10

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Solution

The fourth proportional to 3,119,259.70, 4,678,889.55 and 1,521,000.10 is: 2,281,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,259.70 : 4,678,889.55 = 1,521,000.10 : x
  2. Step 2: Convert to fraction form
    3,119,259.70/4,678,889.55 = 1,521,000.10/x
  3. Step 3: Cross multiply
    3,119,259.70x = 4,678,889.55 × 1,521,000.10
  4. Step 4: Simplify right side
    3,119,259.70x = 7,116,591,473,438.96
  5. Step 5: Solve for x
    x = 7,116,591,473,438.96/3,119,259.70
  6. Step 6: Final answer
    x = 2,281,500.15

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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.