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Finding the Fourth Proportional to 662,047.35, 913,597.70 and 375,621.42

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Solution

The fourth proportional to 662,047.35, 913,597.70 and 375,621.42 is: 518,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,047.35 : 913,597.70 = 375,621.42 : x
  2. Step 2: Convert to fraction form
    662,047.35/913,597.70 = 375,621.42/x
  3. Step 3: Cross multiply
    662,047.35x = 913,597.70 × 375,621.42
  4. Step 4: Simplify right side
    662,047.35x = 343,166,863,504.63
  5. Step 5: Solve for x
    x = 343,166,863,504.63/662,047.35
  6. Step 6: Final answer
    x = 518,341.87

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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.