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Finding the Fourth Proportional to 703,204.94, 970,427.48 and 380,915.04

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Solution

The fourth proportional to 703,204.94, 970,427.48 and 380,915.04 is: 525,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,204.94 : 970,427.48 = 380,915.04 : x
  2. Step 2: Convert to fraction form
    703,204.94/970,427.48 = 380,915.04/x
  3. Step 3: Cross multiply
    703,204.94x = 970,427.48 × 380,915.04
  4. Step 4: Simplify right side
    703,204.94x = 369,650,420,779.82
  5. Step 5: Solve for x
    x = 369,650,420,779.82/703,204.94
  6. Step 6: Final answer
    x = 525,665.28

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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.