Home / 692,072.10-1,036,990.35-391,659.30

Finding the Fourth Proportional to 692,072.10, 1,036,990.35 and 391,659.30

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Solution

The fourth proportional to 692,072.10, 1,036,990.35 and 391,659.30 is: 586,856.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,072.10 : 1,036,990.35 = 391,659.30 : x
  2. Step 2: Convert to fraction form
    692,072.10/1,036,990.35 = 391,659.30/x
  3. Step 3: Cross multiply
    692,072.10x = 1,036,990.35 × 391,659.30
  4. Step 4: Simplify right side
    692,072.10x = 406,146,914,587.76
  5. Step 5: Solve for x
    x = 406,146,914,587.76/692,072.10
  6. Step 6: Final answer
    x = 586,856.36

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1.5x scale

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.