Home / 947,412.72-1,421,145-316,303.92

Finding the Fourth Proportional to 947,412.72, 1,421,145 and 316,303.92

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Solution

The fourth proportional to 947,412.72, 1,421,145 and 316,303.92 is: 474,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,412.72 : 1,421,145 = 316,303.92 : x
  2. Step 2: Convert to fraction form
    947,412.72/1,421,145 = 316,303.92/x
  3. Step 3: Cross multiply
    947,412.72x = 1,421,145 × 316,303.92
  4. Step 4: Simplify right side
    947,412.72x = 449,513,734,388.40
  5. Step 5: Solve for x
    x = 449,513,734,388.40/947,412.72
  6. Step 6: Final answer
    x = 474,464.53

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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.