Home / 827,075.20-1,240,785.60-266,166.40

Finding the Fourth Proportional to 827,075.20, 1,240,785.60 and 266,166.40

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Solution

The fourth proportional to 827,075.20, 1,240,785.60 and 266,166.40 is: 399,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,075.20 : 1,240,785.60 = 266,166.40 : x
  2. Step 2: Convert to fraction form
    827,075.20/1,240,785.60 = 266,166.40/x
  3. Step 3: Cross multiply
    827,075.20x = 1,240,785.60 × 266,166.40
  4. Step 4: Simplify right side
    827,075.20x = 330,255,436,323.84
  5. Step 5: Solve for x
    x = 330,255,436,323.84/827,075.20
  6. Step 6: Final answer
    x = 399,305.21

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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.