Home / 1,325,393.40-1,988,090.10-438,929.40

Finding the Fourth Proportional to 1,325,393.40, 1,988,090.10 and 438,929.40

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Solution

The fourth proportional to 1,325,393.40, 1,988,090.10 and 438,929.40 is: 658,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,393.40 : 1,988,090.10 = 438,929.40 : x
  2. Step 2: Convert to fraction form
    1,325,393.40/1,988,090.10 = 438,929.40/x
  3. Step 3: Cross multiply
    1,325,393.40x = 1,988,090.10 × 438,929.40
  4. Step 4: Simplify right side
    1,325,393.40x = 872,631,194,738.94
  5. Step 5: Solve for x
    x = 872,631,194,738.94/1,325,393.40
  6. Step 6: Final answer
    x = 658,394.10

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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.