Home / 748,622.40-1,122,982.20-394,328.40

Finding the Fourth Proportional to 748,622.40, 1,122,982.20 and 394,328.40

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Solution

The fourth proportional to 748,622.40, 1,122,982.20 and 394,328.40 is: 591,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,622.40 : 1,122,982.20 = 394,328.40 : x
  2. Step 2: Convert to fraction form
    748,622.40/1,122,982.20 = 394,328.40/x
  3. Step 3: Cross multiply
    748,622.40x = 1,122,982.20 × 394,328.40
  4. Step 4: Simplify right side
    748,622.40x = 442,823,774,154.48
  5. Step 5: Solve for x
    x = 442,823,774,154.48/748,622.40
  6. Step 6: Final answer
    x = 591,518.20

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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.