Home / 752,778.70-1,038,835.60-408,614.40

Finding the Fourth Proportional to 752,778.70, 1,038,835.60 and 408,614.40

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Solution

The fourth proportional to 752,778.70, 1,038,835.60 and 408,614.40 is: 563,888.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,778.70 : 1,038,835.60 = 408,614.40 : x
  2. Step 2: Convert to fraction form
    752,778.70/1,038,835.60 = 408,614.40/x
  3. Step 3: Cross multiply
    752,778.70x = 1,038,835.60 × 408,614.40
  4. Step 4: Simplify right side
    752,778.70x = 424,483,185,392.64
  5. Step 5: Solve for x
    x = 424,483,185,392.64/752,778.70
  6. Step 6: Final answer
    x = 563,888.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.