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Finding the Fourth Proportional to 692,378.92, 955,636.74 and 450,240.04

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Solution

The fourth proportional to 692,378.92, 955,636.74 and 450,240.04 is: 621,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,378.92 : 955,636.74 = 450,240.04 : x
  2. Step 2: Convert to fraction form
    692,378.92/955,636.74 = 450,240.04/x
  3. Step 3: Cross multiply
    692,378.92x = 955,636.74 × 450,240.04
  4. Step 4: Simplify right side
    692,378.92x = 430,265,924,043.07
  5. Step 5: Solve for x
    x = 430,265,924,043.07/692,378.92
  6. Step 6: Final answer
    x = 621,431.29

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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.