Home / 752,480.72-1,038,369.48-430,204.40

Finding the Fourth Proportional to 752,480.72, 1,038,369.48 and 430,204.40

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Solution

The fourth proportional to 752,480.72, 1,038,369.48 and 430,204.40 is: 593,651.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,480.72 : 1,038,369.48 = 430,204.40 : x
  2. Step 2: Convert to fraction form
    752,480.72/1,038,369.48 = 430,204.40/x
  3. Step 3: Cross multiply
    752,480.72x = 1,038,369.48 × 430,204.40
  4. Step 4: Simplify right side
    752,480.72x = 446,711,119,121.71
  5. Step 5: Solve for x
    x = 446,711,119,121.71/752,480.72
  6. Step 6: Final answer
    x = 593,651.25

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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.