Home / 1,352,001.60-2,028,002.40-820,123.20

Finding the Fourth Proportional to 1,352,001.60, 2,028,002.40 and 820,123.20

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Solution

The fourth proportional to 1,352,001.60, 2,028,002.40 and 820,123.20 is: 1,230,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,001.60 : 2,028,002.40 = 820,123.20 : x
  2. Step 2: Convert to fraction form
    1,352,001.60/2,028,002.40 = 820,123.20/x
  3. Step 3: Cross multiply
    1,352,001.60x = 2,028,002.40 × 820,123.20
  4. Step 4: Simplify right side
    1,352,001.60x = 1,663,211,817,895.68
  5. Step 5: Solve for x
    x = 1,663,211,817,895.68/1,352,001.60
  6. Step 6: Final answer
    x = 1,230,184.80

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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.