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Finding the Fourth Proportional to 478,984.32, 660,989.16 and 264,144.24

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Solution

The fourth proportional to 478,984.32, 660,989.16 and 264,144.24 is: 364,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,984.32 : 660,989.16 = 264,144.24 : x
  2. Step 2: Convert to fraction form
    478,984.32/660,989.16 = 264,144.24/x
  3. Step 3: Cross multiply
    478,984.32x = 660,989.16 × 264,144.24
  4. Step 4: Simplify right side
    478,984.32x = 174,596,479,316.44
  5. Step 5: Solve for x
    x = 174,596,479,316.44/478,984.32
  6. Step 6: Final answer
    x = 364,513.98

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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.