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Finding the Fourth Proportional to 456,719.81, 630,119.70 and 265,576.01

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Solution

The fourth proportional to 456,719.81, 630,119.70 and 265,576.01 is: 366,405.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,719.81 : 630,119.70 = 265,576.01 : x
  2. Step 2: Convert to fraction form
    456,719.81/630,119.70 = 265,576.01/x
  3. Step 3: Cross multiply
    456,719.81x = 630,119.70 × 265,576.01
  4. Step 4: Simplify right side
    456,719.81x = 167,344,672,597.80
  5. Step 5: Solve for x
    x = 167,344,672,597.80/456,719.81
  6. Step 6: Final answer
    x = 366,405.55

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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.