Home / 858,025.79-1,183,782.31-490,239.03

Finding the Fourth Proportional to 858,025.79, 1,183,782.31 and 490,239.03

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Solution

The fourth proportional to 858,025.79, 1,183,782.31 and 490,239.03 is: 676,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,025.79 : 1,183,782.31 = 490,239.03 : x
  2. Step 2: Convert to fraction form
    858,025.79/1,183,782.31 = 490,239.03/x
  3. Step 3: Cross multiply
    858,025.79x = 1,183,782.31 × 490,239.03
  4. Step 4: Simplify right side
    858,025.79x = 580,336,297,356.74
  5. Step 5: Solve for x
    x = 580,336,297,356.74/858,025.79
  6. Step 6: Final answer
    x = 676,362.30

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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.