Home / 645,461.04-890,589.24-373,522.08

Finding the Fourth Proportional to 645,461.04, 890,589.24 and 373,522.08

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Solution

The fourth proportional to 645,461.04, 890,589.24 and 373,522.08 is: 515,375.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,461.04 : 890,589.24 = 373,522.08 : x
  2. Step 2: Convert to fraction form
    645,461.04/890,589.24 = 373,522.08/x
  3. Step 3: Cross multiply
    645,461.04x = 890,589.24 × 373,522.08
  4. Step 4: Simplify right side
    645,461.04x = 332,654,745,350.42
  5. Step 5: Solve for x
    x = 332,654,745,350.42/645,461.04
  6. Step 6: Final answer
    x = 515,375.41

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1.5x scale

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.