Home / 830,999.60-1,247,483.55-471,456.80

Finding the Fourth Proportional to 830,999.60, 1,247,483.55 and 471,456.80

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Solution

The fourth proportional to 830,999.60, 1,247,483.55 and 471,456.80 is: 707,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,999.60 : 1,247,483.55 = 471,456.80 : x
  2. Step 2: Convert to fraction form
    830,999.60/1,247,483.55 = 471,456.80/x
  3. Step 3: Cross multiply
    830,999.60x = 1,247,483.55 × 471,456.80
  4. Step 4: Simplify right side
    830,999.60x = 588,134,602,535.64
  5. Step 5: Solve for x
    x = 588,134,602,535.64/830,999.60
  6. Step 6: Final answer
    x = 707,743.54

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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.