Home / 771,157.12-1,064,186.40-431,625.28

Finding the Fourth Proportional to 771,157.12, 1,064,186.40 and 431,625.28

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Solution

The fourth proportional to 771,157.12, 1,064,186.40 and 431,625.28 is: 595,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,157.12 : 1,064,186.40 = 431,625.28 : x
  2. Step 2: Convert to fraction form
    771,157.12/1,064,186.40 = 431,625.28/x
  3. Step 3: Cross multiply
    771,157.12x = 1,064,186.40 × 431,625.28
  4. Step 4: Simplify right side
    771,157.12x = 459,329,752,872.19
  5. Step 5: Solve for x
    x = 459,329,752,872.19/771,157.12
  6. Step 6: Final answer
    x = 595,637.05

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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.