Home / 830,999.10-1,247,482.80-471,456.30

Finding the Fourth Proportional to 830,999.10, 1,247,482.80 and 471,456.30

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Solution

The fourth proportional to 830,999.10, 1,247,482.80 and 471,456.30 is: 707,742.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,999.10 : 1,247,482.80 = 471,456.30 : x
  2. Step 2: Convert to fraction form
    830,999.10/1,247,482.80 = 471,456.30/x
  3. Step 3: Cross multiply
    830,999.10x = 1,247,482.80 × 471,456.30
  4. Step 4: Simplify right side
    830,999.10x = 588,133,625,201.64
  5. Step 5: Solve for x
    x = 588,133,625,201.64/830,999.10
  6. Step 6: Final answer
    x = 707,742.79

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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.