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Finding the Fourth Proportional to 630,216.40, 944,460.60 and 404,885.20

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Solution

The fourth proportional to 630,216.40, 944,460.60 and 404,885.20 is: 606,772.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,216.40 : 944,460.60 = 404,885.20 : x
  2. Step 2: Convert to fraction form
    630,216.40/944,460.60 = 404,885.20/x
  3. Step 3: Cross multiply
    630,216.40x = 944,460.60 × 404,885.20
  4. Step 4: Simplify right side
    630,216.40x = 382,398,118,923.12
  5. Step 5: Solve for x
    x = 382,398,118,923.12/630,216.40
  6. Step 6: Final answer
    x = 606,772.72

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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.