Home / 822,075.10-1,233,112.65-261,166.30

Finding the Fourth Proportional to 822,075.10, 1,233,112.65 and 261,166.30

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Solution

The fourth proportional to 822,075.10, 1,233,112.65 and 261,166.30 is: 391,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,075.10 : 1,233,112.65 = 261,166.30 : x
  2. Step 2: Convert to fraction form
    822,075.10/1,233,112.65 = 261,166.30/x
  3. Step 3: Cross multiply
    822,075.10x = 1,233,112.65 × 261,166.30
  4. Step 4: Simplify right side
    822,075.10x = 322,047,468,283.70
  5. Step 5: Solve for x
    x = 322,047,468,283.70/822,075.10
  6. Step 6: Final answer
    x = 391,749.45

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Double scale
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Similar ratio
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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.