Home / 511,022.20-767,211.53-436,620.46

Finding the Fourth Proportional to 511,022.20, 767,211.53 and 436,620.46

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Solution

The fourth proportional to 511,022.20, 767,211.53 and 436,620.46 is: 655,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,022.20 : 767,211.53 = 436,620.46 : x
  2. Step 2: Convert to fraction form
    511,022.20/767,211.53 = 436,620.46/x
  3. Step 3: Cross multiply
    511,022.20x = 767,211.53 × 436,620.46
  4. Step 4: Simplify right side
    511,022.20x = 334,980,248,401.40
  5. Step 5: Solve for x
    x = 334,980,248,401.40/511,022.20
  6. Step 6: Final answer
    x = 655,510.17

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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.