Home / 1,278,433.76-1,918,506.72-530,480.48

Finding the Fourth Proportional to 1,278,433.76, 1,918,506.72 and 530,480.48

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Solution

The fourth proportional to 1,278,433.76, 1,918,506.72 and 530,480.48 is: 796,075.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,433.76 : 1,918,506.72 = 530,480.48 : x
  2. Step 2: Convert to fraction form
    1,278,433.76/1,918,506.72 = 530,480.48/x
  3. Step 3: Cross multiply
    1,278,433.76x = 1,918,506.72 × 530,480.48
  4. Step 4: Simplify right side
    1,278,433.76x = 1,017,730,365,708.83
  5. Step 5: Solve for x
    x = 1,017,730,365,708.83/1,278,433.76
  6. Step 6: Final answer
    x = 796,075.95

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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.