Home / 1,112,065.40-1,668,098.10-402,116.60

Finding the Fourth Proportional to 1,112,065.40, 1,668,098.10 and 402,116.60

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Solution

The fourth proportional to 1,112,065.40, 1,668,098.10 and 402,116.60 is: 603,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,065.40 : 1,668,098.10 = 402,116.60 : x
  2. Step 2: Convert to fraction form
    1,112,065.40/1,668,098.10 = 402,116.60/x
  3. Step 3: Cross multiply
    1,112,065.40x = 1,668,098.10 × 402,116.60
  4. Step 4: Simplify right side
    1,112,065.40x = 670,769,936,438.46
  5. Step 5: Solve for x
    x = 670,769,936,438.46/1,112,065.40
  6. Step 6: Final answer
    x = 603,174.90

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Double scale
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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.