Home / 554,238.42-764,784.02-312,506.60

Finding the Fourth Proportional to 554,238.42, 764,784.02 and 312,506.60

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Solution

The fourth proportional to 554,238.42, 764,784.02 and 312,506.60 is: 431,222.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,238.42 : 764,784.02 = 312,506.60 : x
  2. Step 2: Convert to fraction form
    554,238.42/764,784.02 = 312,506.60/x
  3. Step 3: Cross multiply
    554,238.42x = 764,784.02 × 312,506.60
  4. Step 4: Simplify right side
    554,238.42x = 239,000,053,824.53
  5. Step 5: Solve for x
    x = 239,000,053,824.53/554,238.42
  6. Step 6: Final answer
    x = 431,222.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.