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Finding the Fourth Proportional to 648,088.76, 894,370.38 and 376,219.64

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Solution

The fourth proportional to 648,088.76, 894,370.38 and 376,219.64 is: 519,187.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,088.76 : 894,370.38 = 376,219.64 : x
  2. Step 2: Convert to fraction form
    648,088.76/894,370.38 = 376,219.64/x
  3. Step 3: Cross multiply
    648,088.76x = 894,370.38 × 376,219.64
  4. Step 4: Simplify right side
    648,088.76x = 336,479,702,390.26
  5. Step 5: Solve for x
    x = 336,479,702,390.26/648,088.76
  6. Step 6: Final answer
    x = 519,187.68

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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.