Home / 699,705.30-1,049,070.97-310,000.12

Finding the Fourth Proportional to 699,705.30, 1,049,070.97 and 310,000.12

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Solution

The fourth proportional to 699,705.30, 1,049,070.97 and 310,000.12 is: 464,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,705.30 : 1,049,070.97 = 310,000.12 : x
  2. Step 2: Convert to fraction form
    699,705.30/1,049,070.97 = 310,000.12/x
  3. Step 3: Cross multiply
    699,705.30x = 1,049,070.97 × 310,000.12
  4. Step 4: Simplify right side
    699,705.30x = 325,212,130,254.36
  5. Step 5: Solve for x
    x = 325,212,130,254.36/699,705.30
  6. Step 6: Final answer
    x = 464,784.43

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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.