Home / 830,835.90-1,245,269.70-620,227.80

Finding the Fourth Proportional to 830,835.90, 1,245,269.70 and 620,227.80

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Solution

The fourth proportional to 830,835.90, 1,245,269.70 and 620,227.80 is: 929,607.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,835.90 : 1,245,269.70 = 620,227.80 : x
  2. Step 2: Convert to fraction form
    830,835.90/1,245,269.70 = 620,227.80/x
  3. Step 3: Cross multiply
    830,835.90x = 1,245,269.70 × 620,227.80
  4. Step 4: Simplify right side
    830,835.90x = 772,350,886,437.66
  5. Step 5: Solve for x
    x = 772,350,886,437.66/830,835.90
  6. Step 6: Final answer
    x = 929,607.02

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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.