Home / 1,512,076-2,268,157.74-390,145

Finding the Fourth Proportional to 1,512,076, 2,268,157.74 and 390,145

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Solution

The fourth proportional to 1,512,076, 2,268,157.74 and 390,145 is: 585,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,076 : 2,268,157.74 = 390,145 : x
  2. Step 2: Convert to fraction form
    1,512,076/2,268,157.74 = 390,145/x
  3. Step 3: Cross multiply
    1,512,076x = 2,268,157.74 × 390,145
  4. Step 4: Simplify right side
    1,512,076x = 884,910,401,472.30
  5. Step 5: Solve for x
    x = 884,910,401,472.30/1,512,076
  6. Step 6: Final answer
    x = 585,228.79

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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.