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Finding the Fourth Proportional to 680,984.58, 939,801.38 and 375,060.89

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Solution

The fourth proportional to 680,984.58, 939,801.38 and 375,060.89 is: 517,607.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,984.58 : 939,801.38 = 375,060.89 : x
  2. Step 2: Convert to fraction form
    680,984.58/939,801.38 = 375,060.89/x
  3. Step 3: Cross multiply
    680,984.58x = 939,801.38 × 375,060.89
  4. Step 4: Simplify right side
    680,984.58x = 352,482,740,297.39
  5. Step 5: Solve for x
    x = 352,482,740,297.39/680,984.58
  6. Step 6: Final answer
    x = 517,607.52

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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.