Home / 947,389.46-1,421,025.87-316,250.42

Finding the Fourth Proportional to 947,389.46, 1,421,025.87 and 316,250.42

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Solution

The fourth proportional to 947,389.46, 1,421,025.87 and 316,250.42 is: 474,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,389.46 : 1,421,025.87 = 316,250.42 : x
  2. Step 2: Convert to fraction form
    947,389.46/1,421,025.87 = 316,250.42/x
  3. Step 3: Cross multiply
    947,389.46x = 1,421,025.87 × 316,250.42
  4. Step 4: Simplify right side
    947,389.46x = 449,400,028,218.37
  5. Step 5: Solve for x
    x = 449,400,028,218.37/947,389.46
  6. Step 6: Final answer
    x = 474,356.16

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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.