Home / 3,119,258.70-4,678,888.05-1,520,999.10

Finding the Fourth Proportional to 3,119,258.70, 4,678,888.05 and 1,520,999.10

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Solution

The fourth proportional to 3,119,258.70, 4,678,888.05 and 1,520,999.10 is: 2,281,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,258.70 : 4,678,888.05 = 1,520,999.10 : x
  2. Step 2: Convert to fraction form
    3,119,258.70/4,678,888.05 = 1,520,999.10/x
  3. Step 3: Cross multiply
    3,119,258.70x = 4,678,888.05 × 1,520,999.10
  4. Step 4: Simplify right side
    3,119,258.70x = 7,116,584,513,050.76
  5. Step 5: Solve for x
    x = 7,116,584,513,050.76/3,119,258.70
  6. Step 6: Final answer
    x = 2,281,498.65

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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.