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Finding the Fourth Proportional to 680,851.89, 939,558.63 and 374,925.84

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Solution

The fourth proportional to 680,851.89, 939,558.63 and 374,925.84 is: 517,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,851.89 : 939,558.63 = 374,925.84 : x
  2. Step 2: Convert to fraction form
    680,851.89/939,558.63 = 374,925.84/x
  3. Step 3: Cross multiply
    680,851.89x = 939,558.63 × 374,925.84
  4. Step 4: Simplify right side
    680,851.89x = 352,264,808,582.00
  5. Step 5: Solve for x
    x = 352,264,808,582.00/680,851.89
  6. Step 6: Final answer
    x = 517,388.31

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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.