Home / 764,590.08-1,146,442.32-258,981.60

Finding the Fourth Proportional to 764,590.08, 1,146,442.32 and 258,981.60

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Solution

The fourth proportional to 764,590.08, 1,146,442.32 and 258,981.60 is: 388,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,590.08 : 1,146,442.32 = 258,981.60 : x
  2. Step 2: Convert to fraction form
    764,590.08/1,146,442.32 = 258,981.60/x
  3. Step 3: Cross multiply
    764,590.08x = 1,146,442.32 × 258,981.60
  4. Step 4: Simplify right side
    764,590.08x = 296,907,466,341.31
  5. Step 5: Solve for x
    x = 296,907,466,341.31/764,590.08
  6. Step 6: Final answer
    x = 388,322.41

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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.