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Finding the Fourth Proportional to 661,261.62, 912,551.03 and 370,937.54

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Solution

The fourth proportional to 661,261.62, 912,551.03 and 370,937.54 is: 511,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,261.62 : 912,551.03 = 370,937.54 : x
  2. Step 2: Convert to fraction form
    661,261.62/912,551.03 = 370,937.54/x
  3. Step 3: Cross multiply
    661,261.62x = 912,551.03 × 370,937.54
  4. Step 4: Simplify right side
    661,261.62x = 338,499,427,775.22
  5. Step 5: Solve for x
    x = 338,499,427,775.22/661,261.62
  6. Step 6: Final answer
    x = 511,899.40

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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.