Home / 1,112,003.40-1,668,005.10-402,054.60

Finding the Fourth Proportional to 1,112,003.40, 1,668,005.10 and 402,054.60

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Solution

The fourth proportional to 1,112,003.40, 1,668,005.10 and 402,054.60 is: 603,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,003.40 : 1,668,005.10 = 402,054.60 : x
  2. Step 2: Convert to fraction form
    1,112,003.40/1,668,005.10 = 402,054.60/x
  3. Step 3: Cross multiply
    1,112,003.40x = 1,668,005.10 × 402,054.60
  4. Step 4: Simplify right side
    1,112,003.40x = 670,629,123,278.46
  5. Step 5: Solve for x
    x = 670,629,123,278.46/1,112,003.40
  6. Step 6: Final answer
    x = 603,081.90

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Double scale
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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.