Home / 1,112,455.80-1,668,683.70-313,726.95

Finding the Fourth Proportional to 1,112,455.80, 1,668,683.70 and 313,726.95

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Solution

The fourth proportional to 1,112,455.80, 1,668,683.70 and 313,726.95 is: 470,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,455.80 : 1,668,683.70 = 313,726.95 : x
  2. Step 2: Convert to fraction form
    1,112,455.80/1,668,683.70 = 313,726.95/x
  3. Step 3: Cross multiply
    1,112,455.80x = 1,668,683.70 × 313,726.95
  4. Step 4: Simplify right side
    1,112,455.80x = 523,511,047,715.72
  5. Step 5: Solve for x
    x = 523,511,047,715.72/1,112,455.80
  6. Step 6: Final answer
    x = 470,590.43

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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.