Home / 494,095.08-681,600.78-312,501.18

Finding the Fourth Proportional to 494,095.08, 681,600.78 and 312,501.18

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Solution

The fourth proportional to 494,095.08, 681,600.78 and 312,501.18 is: 431,093.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,095.08 : 681,600.78 = 312,501.18 : x
  2. Step 2: Convert to fraction form
    494,095.08/681,600.78 = 312,501.18/x
  3. Step 3: Cross multiply
    494,095.08x = 681,600.78 × 312,501.18
  4. Step 4: Simplify right side
    494,095.08x = 213,001,048,038.92
  5. Step 5: Solve for x
    x = 213,001,048,038.92/494,095.08
  6. Step 6: Final answer
    x = 431,093.24

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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.