Home / 677,463.37-934,832.07-391,075.72

Finding the Fourth Proportional to 677,463.37, 934,832.07 and 391,075.72

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Solution

The fourth proportional to 677,463.37, 934,832.07 and 391,075.72 is: 539,645.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,463.37 : 934,832.07 = 391,075.72 : x
  2. Step 2: Convert to fraction form
    677,463.37/934,832.07 = 391,075.72/x
  3. Step 3: Cross multiply
    677,463.37x = 934,832.07 × 391,075.72
  4. Step 4: Simplify right side
    677,463.37x = 365,590,122,898.96
  5. Step 5: Solve for x
    x = 365,590,122,898.96/677,463.37
  6. Step 6: Final answer
    x = 539,645.59

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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.