Home / 692,632.80-1,038,949.20-394,034.40

Finding the Fourth Proportional to 692,632.80, 1,038,949.20 and 394,034.40

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Solution

The fourth proportional to 692,632.80, 1,038,949.20 and 394,034.40 is: 591,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,632.80 : 1,038,949.20 = 394,034.40 : x
  2. Step 2: Convert to fraction form
    692,632.80/1,038,949.20 = 394,034.40/x
  3. Step 3: Cross multiply
    692,632.80x = 1,038,949.20 × 394,034.40
  4. Step 4: Simplify right side
    692,632.80x = 409,381,724,652.48
  5. Step 5: Solve for x
    x = 409,381,724,652.48/692,632.80
  6. Step 6: Final answer
    x = 591,051.60

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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.