Home / 689,133.44-1,031,758.32-520,116.14

Finding the Fourth Proportional to 689,133.44, 1,031,758.32 and 520,116.14

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Solution

The fourth proportional to 689,133.44, 1,031,758.32 and 520,116.14 is: 778,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,133.44 : 1,031,758.32 = 520,116.14 : x
  2. Step 2: Convert to fraction form
    689,133.44/1,031,758.32 = 520,116.14/x
  3. Step 3: Cross multiply
    689,133.44x = 1,031,758.32 × 520,116.14
  4. Step 4: Simplify right side
    689,133.44x = 536,634,154,811.29
  5. Step 5: Solve for x
    x = 536,634,154,811.29/689,133.44
  6. Step 6: Final answer
    x = 778,708.63

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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.