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Finding the Fourth Proportional to 662,195.96, 913,803.52 and 375,709.89

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Solution

The fourth proportional to 662,195.96, 913,803.52 and 375,709.89 is: 518,464.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,195.96 : 913,803.52 = 375,709.89 : x
  2. Step 2: Convert to fraction form
    662,195.96/913,803.52 = 375,709.89/x
  3. Step 3: Cross multiply
    662,195.96x = 913,803.52 × 375,709.89
  4. Step 4: Simplify right side
    662,195.96x = 343,325,019,980.81
  5. Step 5: Solve for x
    x = 343,325,019,980.81/662,195.96
  6. Step 6: Final answer
    x = 518,464.38

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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.