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Finding the Fourth Proportional to 478,802.76, 659,915.52 and 349,528.56

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Solution

The fourth proportional to 478,802.76, 659,915.52 and 349,528.56 is: 481,741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,802.76 : 659,915.52 = 349,528.56 : x
  2. Step 2: Convert to fraction form
    478,802.76/659,915.52 = 349,528.56/x
  3. Step 3: Cross multiply
    478,802.76x = 659,915.52 × 349,528.56
  4. Step 4: Simplify right side
    478,802.76x = 230,659,321,427.25
  5. Step 5: Solve for x
    x = 230,659,321,427.25/478,802.76
  6. Step 6: Final answer
    x = 481,741.84

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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.