Home / 722,086.81-1,083,356.79-434,229.76

Finding the Fourth Proportional to 722,086.81, 1,083,356.79 and 434,229.76

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Solution

The fourth proportional to 722,086.81, 1,083,356.79 and 434,229.76 is: 651,480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,086.81 : 1,083,356.79 = 434,229.76 : x
  2. Step 2: Convert to fraction form
    722,086.81/1,083,356.79 = 434,229.76/x
  3. Step 3: Cross multiply
    722,086.81x = 1,083,356.79 × 434,229.76
  4. Step 4: Simplify right side
    722,086.81x = 470,425,758,916.07
  5. Step 5: Solve for x
    x = 470,425,758,916.07/722,086.81
  6. Step 6: Final answer
    x = 651,480.89

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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.