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Finding the Fourth Proportional to 636,218.64, 954,485.04 and 316,522.32

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Solution

The fourth proportional to 636,218.64, 954,485.04 and 316,522.32 is: 474,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,218.64 : 954,485.04 = 316,522.32 : x
  2. Step 2: Convert to fraction form
    636,218.64/954,485.04 = 316,522.32/x
  3. Step 3: Cross multiply
    636,218.64x = 954,485.04 × 316,522.32
  4. Step 4: Simplify right side
    636,218.64x = 302,115,819,266.09
  5. Step 5: Solve for x
    x = 302,115,819,266.09/636,218.64
  6. Step 6: Final answer
    x = 474,861.63

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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.