Home / 726,579.45-1,089,377.10-371,301.30

Finding the Fourth Proportional to 726,579.45, 1,089,377.10 and 371,301.30

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Solution

The fourth proportional to 726,579.45, 1,089,377.10 and 371,301.30 is: 556,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,579.45 : 1,089,377.10 = 371,301.30 : x
  2. Step 2: Convert to fraction form
    726,579.45/1,089,377.10 = 371,301.30/x
  3. Step 3: Cross multiply
    726,579.45x = 1,089,377.10 × 371,301.30
  4. Step 4: Simplify right side
    726,579.45x = 404,487,133,420.23
  5. Step 5: Solve for x
    x = 404,487,133,420.23/726,579.45
  6. Step 6: Final answer
    x = 556,700.49

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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.