Home / 1,020,130.80-1,528,446.60-486,502.80

Finding the Fourth Proportional to 1,020,130.80, 1,528,446.60 and 486,502.80

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Solution

The fourth proportional to 1,020,130.80, 1,528,446.60 and 486,502.80 is: 728,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,130.80 : 1,528,446.60 = 486,502.80 : x
  2. Step 2: Convert to fraction form
    1,020,130.80/1,528,446.60 = 486,502.80/x
  3. Step 3: Cross multiply
    1,020,130.80x = 1,528,446.60 × 486,502.80
  4. Step 4: Simplify right side
    1,020,130.80x = 743,593,550,550.48
  5. Step 5: Solve for x
    x = 743,593,550,550.48/1,020,130.80
  6. Step 6: Final answer
    x = 728,919.81

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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.