Home / 830,837.90-1,245,272.70-620,229.80

Finding the Fourth Proportional to 830,837.90, 1,245,272.70 and 620,229.80

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Solution

The fourth proportional to 830,837.90, 1,245,272.70 and 620,229.80 is: 929,610.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,837.90 : 1,245,272.70 = 620,229.80 : x
  2. Step 2: Convert to fraction form
    830,837.90/1,245,272.70 = 620,229.80/x
  3. Step 3: Cross multiply
    830,837.90x = 1,245,272.70 × 620,229.80
  4. Step 4: Simplify right side
    830,837.90x = 772,355,237,666.46
  5. Step 5: Solve for x
    x = 772,355,237,666.46/830,837.90
  6. Step 6: Final answer
    x = 929,610.02

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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.