Home / 788,708.63-1,088,417.91-449,208.47

Finding the Fourth Proportional to 788,708.63, 1,088,417.91 and 449,208.47

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Solution

The fourth proportional to 788,708.63, 1,088,417.91 and 449,208.47 is: 619,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,708.63 : 1,088,417.91 = 449,208.47 : x
  2. Step 2: Convert to fraction form
    788,708.63/1,088,417.91 = 449,208.47/x
  3. Step 3: Cross multiply
    788,708.63x = 1,088,417.91 × 449,208.47
  4. Step 4: Simplify right side
    788,708.63x = 488,926,538,629.61
  5. Step 5: Solve for x
    x = 488,926,538,629.61/788,708.63
  6. Step 6: Final answer
    x = 619,907.69

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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.