Home / 1,020,220.80-1,528,581.60-486,592.80

Finding the Fourth Proportional to 1,020,220.80, 1,528,581.60 and 486,592.80

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Solution

The fourth proportional to 1,020,220.80, 1,528,581.60 and 486,592.80 is: 729,054.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,220.80 : 1,528,581.60 = 486,592.80 : x
  2. Step 2: Convert to fraction form
    1,020,220.80/1,528,581.60 = 486,592.80/x
  3. Step 3: Cross multiply
    1,020,220.80x = 1,528,581.60 × 486,592.80
  4. Step 4: Simplify right side
    1,020,220.80x = 743,796,800,772.48
  5. Step 5: Solve for x
    x = 743,796,800,772.48/1,020,220.80
  6. Step 6: Final answer
    x = 729,054.73

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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.