Home / 1,020,769.20-1,531,153.80-910,544.40

Finding the Fourth Proportional to 1,020,769.20, 1,531,153.80 and 910,544.40

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Solution

The fourth proportional to 1,020,769.20, 1,531,153.80 and 910,544.40 is: 1,365,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,769.20 : 1,531,153.80 = 910,544.40 : x
  2. Step 2: Convert to fraction form
    1,020,769.20/1,531,153.80 = 910,544.40/x
  3. Step 3: Cross multiply
    1,020,769.20x = 1,531,153.80 × 910,544.40
  4. Step 4: Simplify right side
    1,020,769.20x = 1,394,183,518,128.72
  5. Step 5: Solve for x
    x = 1,394,183,518,128.72/1,020,769.20
  6. Step 6: Final answer
    x = 1,365,816.60

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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.