Home / 935,487.46-1,290,975.82-505,770.64

Finding the Fourth Proportional to 935,487.46, 1,290,975.82 and 505,770.64

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Solution

The fourth proportional to 935,487.46, 1,290,975.82 and 505,770.64 is: 697,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,487.46 : 1,290,975.82 = 505,770.64 : x
  2. Step 2: Convert to fraction form
    935,487.46/1,290,975.82 = 505,770.64/x
  3. Step 3: Cross multiply
    935,487.46x = 1,290,975.82 × 505,770.64
  4. Step 4: Simplify right side
    935,487.46x = 652,937,666,705.93
  5. Step 5: Solve for x
    x = 652,937,666,705.93/935,487.46
  6. Step 6: Final answer
    x = 697,965.17

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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.