Home / 1,239,445.80-1,859,168.70-441,628.20

Finding the Fourth Proportional to 1,239,445.80, 1,859,168.70 and 441,628.20

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Solution

The fourth proportional to 1,239,445.80, 1,859,168.70 and 441,628.20 is: 662,442.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,445.80 : 1,859,168.70 = 441,628.20 : x
  2. Step 2: Convert to fraction form
    1,239,445.80/1,859,168.70 = 441,628.20/x
  3. Step 3: Cross multiply
    1,239,445.80x = 1,859,168.70 × 441,628.20
  4. Step 4: Simplify right side
    1,239,445.80x = 821,061,326,477.34
  5. Step 5: Solve for x
    x = 821,061,326,477.34/1,239,445.80
  6. Step 6: Final answer
    x = 662,442.30

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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.