Home / 1,020,821.16-1,531,453.14-310,830.60

Finding the Fourth Proportional to 1,020,821.16, 1,531,453.14 and 310,830.60

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Solution

The fourth proportional to 1,020,821.16, 1,531,453.14 and 310,830.60 is: 466,313.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,821.16 : 1,531,453.14 = 310,830.60 : x
  2. Step 2: Convert to fraction form
    1,020,821.16/1,531,453.14 = 310,830.60/x
  3. Step 3: Cross multiply
    1,020,821.16x = 1,531,453.14 × 310,830.60
  4. Step 4: Simplify right side
    1,020,821.16x = 476,022,498,378.08
  5. Step 5: Solve for x
    x = 476,022,498,378.08/1,020,821.16
  6. Step 6: Final answer
    x = 466,313.31

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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.