Home / 771,546.32-1,064,487.87-499,822.49

Finding the Fourth Proportional to 771,546.32, 1,064,487.87 and 499,822.49

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Solution

The fourth proportional to 771,546.32, 1,064,487.87 and 499,822.49 is: 689,595.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,546.32 : 1,064,487.87 = 499,822.49 : x
  2. Step 2: Convert to fraction form
    771,546.32/1,064,487.87 = 499,822.49/x
  3. Step 3: Cross multiply
    771,546.32x = 1,064,487.87 × 499,822.49
  4. Step 4: Simplify right side
    771,546.32x = 532,054,977,758.20
  5. Step 5: Solve for x
    x = 532,054,977,758.20/771,546.32
  6. Step 6: Final answer
    x = 689,595.64

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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.