Home / 648,075.89-972,297.02-221,704.04

Finding the Fourth Proportional to 648,075.89, 972,297.02 and 221,704.04

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Solution

The fourth proportional to 648,075.89, 972,297.02 and 221,704.04 is: 332,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,075.89 : 972,297.02 = 221,704.04 : x
  2. Step 2: Convert to fraction form
    648,075.89/972,297.02 = 221,704.04/x
  3. Step 3: Cross multiply
    648,075.89x = 972,297.02 × 221,704.04
  4. Step 4: Simplify right side
    648,075.89x = 215,562,173,106.74
  5. Step 5: Solve for x
    x = 215,562,173,106.74/648,075.89
  6. Step 6: Final answer
    x = 332,618.72

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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.