Home / 740,636.40-1,022,161.34-418,367.24

Finding the Fourth Proportional to 740,636.40, 1,022,161.34 and 418,367.24

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Solution

The fourth proportional to 740,636.40, 1,022,161.34 and 418,367.24 is: 577,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,636.40 : 1,022,161.34 = 418,367.24 : x
  2. Step 2: Convert to fraction form
    740,636.40/1,022,161.34 = 418,367.24/x
  3. Step 3: Cross multiply
    740,636.40x = 1,022,161.34 × 418,367.24
  4. Step 4: Simplify right side
    740,636.40x = 427,638,818,650.50
  5. Step 5: Solve for x
    x = 427,638,818,650.50/740,636.40
  6. Step 6: Final answer
    x = 577,393.74

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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.