Home / 788,765.14-1,182,673.79-308,420.69

Finding the Fourth Proportional to 788,765.14, 1,182,673.79 and 308,420.69

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Solution

The fourth proportional to 788,765.14, 1,182,673.79 and 308,420.69 is: 462,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,765.14 : 1,182,673.79 = 308,420.69 : x
  2. Step 2: Convert to fraction form
    788,765.14/1,182,673.79 = 308,420.69/x
  3. Step 3: Cross multiply
    788,765.14x = 1,182,673.79 × 308,420.69
  4. Step 4: Simplify right side
    788,765.14x = 364,761,064,814.61
  5. Step 5: Solve for x
    x = 364,761,064,814.61/788,765.14
  6. Step 6: Final answer
    x = 462,445.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.