Home / 420,017.21-630,024.56-104,474.13

Finding the Fourth Proportional to 420,017.21, 630,024.56 and 104,474.13

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Solution

The fourth proportional to 420,017.21, 630,024.56 and 104,474.13 is: 156,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,017.21 : 630,024.56 = 104,474.13 : x
  2. Step 2: Convert to fraction form
    420,017.21/630,024.56 = 104,474.13/x
  3. Step 3: Cross multiply
    420,017.21x = 630,024.56 × 104,474.13
  4. Step 4: Simplify right side
    420,017.21x = 65,821,267,784.63
  5. Step 5: Solve for x
    x = 65,821,267,784.63/420,017.21
  6. Step 6: Final answer
    x = 156,710.88

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1.5x scale

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.