Home / 1,113,118.80-1,669,678.20-553,246.80

Finding the Fourth Proportional to 1,113,118.80, 1,669,678.20 and 553,246.80

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Solution

The fourth proportional to 1,113,118.80, 1,669,678.20 and 553,246.80 is: 829,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,118.80 : 1,669,678.20 = 553,246.80 : x
  2. Step 2: Convert to fraction form
    1,113,118.80/1,669,678.20 = 553,246.80/x
  3. Step 3: Cross multiply
    1,113,118.80x = 1,669,678.20 × 553,246.80
  4. Step 4: Simplify right side
    1,113,118.80x = 923,744,121,179.76
  5. Step 5: Solve for x
    x = 923,744,121,179.76/1,113,118.80
  6. Step 6: Final answer
    x = 829,870.20

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Double scale
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Similar ratio
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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.