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Finding the Fourth Proportional to 648,468.64, 894,900.90 and 358,079.56

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Solution

The fourth proportional to 648,468.64, 894,900.90 and 358,079.56 is: 494,157.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,468.64 : 894,900.90 = 358,079.56 : x
  2. Step 2: Convert to fraction form
    648,468.64/894,900.90 = 358,079.56/x
  3. Step 3: Cross multiply
    648,468.64x = 894,900.90 × 358,079.56
  4. Step 4: Simplify right side
    648,468.64x = 320,445,720,515.60
  5. Step 5: Solve for x
    x = 320,445,720,515.60/648,468.64
  6. Step 6: Final answer
    x = 494,157.62

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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.