Home / 1,020,079.20-1,528,806.60-620,295.60

Finding the Fourth Proportional to 1,020,079.20, 1,528,806.60 and 620,295.60

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Solution

The fourth proportional to 1,020,079.20, 1,528,806.60 and 620,295.60 is: 929,645.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,079.20 : 1,528,806.60 = 620,295.60 : x
  2. Step 2: Convert to fraction form
    1,020,079.20/1,528,806.60 = 620,295.60/x
  3. Step 3: Cross multiply
    1,020,079.20x = 1,528,806.60 × 620,295.60
  4. Step 4: Simplify right side
    1,020,079.20x = 948,312,007,230.96
  5. Step 5: Solve for x
    x = 948,312,007,230.96/1,020,079.20
  6. Step 6: Final answer
    x = 929,645.47

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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.