Home / 1,112,460.60-1,669,128.30-438,427.20

Finding the Fourth Proportional to 1,112,460.60, 1,669,128.30 and 438,427.20

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Solution

The fourth proportional to 1,112,460.60, 1,669,128.30 and 438,427.20 is: 657,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,460.60 : 1,669,128.30 = 438,427.20 : x
  2. Step 2: Convert to fraction form
    1,112,460.60/1,669,128.30 = 438,427.20/x
  3. Step 3: Cross multiply
    1,112,460.60x = 1,669,128.30 × 438,427.20
  4. Step 4: Simplify right side
    1,112,460.60x = 731,791,247,009.76
  5. Step 5: Solve for x
    x = 731,791,247,009.76/1,112,460.60
  6. Step 6: Final answer
    x = 657,813.18

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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.