Home / 699,705.80-1,049,071.72-310,000.63

Finding the Fourth Proportional to 699,705.80, 1,049,071.72 and 310,000.63

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Solution

The fourth proportional to 699,705.80, 1,049,071.72 and 310,000.63 is: 464,785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,705.80 : 1,049,071.72 = 310,000.63 : x
  2. Step 2: Convert to fraction form
    699,705.80/1,049,071.72 = 310,000.63/x
  3. Step 3: Cross multiply
    699,705.80x = 1,049,071.72 × 310,000.63
  4. Step 4: Simplify right side
    699,705.80x = 325,212,888,869.83
  5. Step 5: Solve for x
    x = 325,212,888,869.83/699,705.80
  6. Step 6: Final answer
    x = 464,785.18

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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.