Home / 771,177.11-1,157,002.13-345,071.64

Finding the Fourth Proportional to 771,177.11, 1,157,002.13 and 345,071.64

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Solution

The fourth proportional to 771,177.11, 1,157,002.13 and 345,071.64 is: 517,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,177.11 : 1,157,002.13 = 345,071.64 : x
  2. Step 2: Convert to fraction form
    771,177.11/1,157,002.13 = 345,071.64/x
  3. Step 3: Cross multiply
    771,177.11x = 1,157,002.13 × 345,071.64
  4. Step 4: Simplify right side
    771,177.11x = 399,248,625,743.00
  5. Step 5: Solve for x
    x = 399,248,625,743.00/771,177.11
  6. Step 6: Final answer
    x = 517,713.28

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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.