Home / 830,067.60-1,246,267.80-515,139.60

Finding the Fourth Proportional to 830,067.60, 1,246,267.80 and 515,139.60

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Solution

The fourth proportional to 830,067.60, 1,246,267.80 and 515,139.60 is: 773,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,067.60 : 1,246,267.80 = 515,139.60 : x
  2. Step 2: Convert to fraction form
    830,067.60/1,246,267.80 = 515,139.60/x
  3. Step 3: Cross multiply
    830,067.60x = 1,246,267.80 × 515,139.60
  4. Step 4: Simplify right side
    830,067.60x = 642,001,895,984.88
  5. Step 5: Solve for x
    x = 642,001,895,984.88/830,067.60
  6. Step 6: Final answer
    x = 773,433.27

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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.