Home / 699,534.80-1,049,302.20-620,802.80

Finding the Fourth Proportional to 699,534.80, 1,049,302.20 and 620,802.80

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Solution

The fourth proportional to 699,534.80, 1,049,302.20 and 620,802.80 is: 931,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,534.80 : 1,049,302.20 = 620,802.80 : x
  2. Step 2: Convert to fraction form
    699,534.80/1,049,302.20 = 620,802.80/x
  3. Step 3: Cross multiply
    699,534.80x = 1,049,302.20 × 620,802.80
  4. Step 4: Simplify right side
    699,534.80x = 651,409,743,806.16
  5. Step 5: Solve for x
    x = 651,409,743,806.16/699,534.80
  6. Step 6: Final answer
    x = 931,204.20

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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.