Home / 726,569.10-1,089,724.05-459,852.30

Finding the Fourth Proportional to 726,569.10, 1,089,724.05 and 459,852.30

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Solution

The fourth proportional to 726,569.10, 1,089,724.05 and 459,852.30 is: 689,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,569.10 : 1,089,724.05 = 459,852.30 : x
  2. Step 2: Convert to fraction form
    726,569.10/1,089,724.05 = 459,852.30/x
  3. Step 3: Cross multiply
    726,569.10x = 1,089,724.05 × 459,852.30
  4. Step 4: Simplify right side
    726,569.10x = 501,112,110,757.82
  5. Step 5: Solve for x
    x = 501,112,110,757.82/726,569.10
  6. Step 6: Final answer
    x = 689,696.42

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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.