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Finding the Fourth Proportional to 550,115.22, 759,407.70 and 346,465.41

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Solution

The fourth proportional to 550,115.22, 759,407.70 and 346,465.41 is: 478,278.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,115.22 : 759,407.70 = 346,465.41 : x
  2. Step 2: Convert to fraction form
    550,115.22/759,407.70 = 346,465.41/x
  3. Step 3: Cross multiply
    550,115.22x = 759,407.70 × 346,465.41
  4. Step 4: Simplify right side
    550,115.22x = 263,108,500,137.66
  5. Step 5: Solve for x
    x = 263,108,500,137.66/550,115.22
  6. Step 6: Final answer
    x = 478,278.90

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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.