Home / 529,915.33-731,276.08-288,192.70

Finding the Fourth Proportional to 529,915.33, 731,276.08 and 288,192.70

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Solution

The fourth proportional to 529,915.33, 731,276.08 and 288,192.70 is: 397,702.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,915.33 : 731,276.08 = 288,192.70 : x
  2. Step 2: Convert to fraction form
    529,915.33/731,276.08 = 288,192.70/x
  3. Step 3: Cross multiply
    529,915.33x = 731,276.08 × 288,192.70
  4. Step 4: Simplify right side
    529,915.33x = 210,748,427,940.62
  5. Step 5: Solve for x
    x = 210,748,427,940.62/529,915.33
  6. Step 6: Final answer
    x = 397,702.08

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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.