Home / 1,235,407.40-1,852,938.30-394,044.20

Finding the Fourth Proportional to 1,235,407.40, 1,852,938.30 and 394,044.20

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Solution

The fourth proportional to 1,235,407.40, 1,852,938.30 and 394,044.20 is: 591,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,407.40 : 1,852,938.30 = 394,044.20 : x
  2. Step 2: Convert to fraction form
    1,235,407.40/1,852,938.30 = 394,044.20/x
  3. Step 3: Cross multiply
    1,235,407.40x = 1,852,938.30 × 394,044.20
  4. Step 4: Simplify right side
    1,235,407.40x = 730,139,590,072.86
  5. Step 5: Solve for x
    x = 730,139,590,072.86/1,235,407.40
  6. Step 6: Final answer
    x = 591,011.18

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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.