Home / 768,008.58-1,059,852.51-428,476.92

Finding the Fourth Proportional to 768,008.58, 1,059,852.51 and 428,476.92

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Solution

The fourth proportional to 768,008.58, 1,059,852.51 and 428,476.92 is: 591,298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,008.58 : 1,059,852.51 = 428,476.92 : x
  2. Step 2: Convert to fraction form
    768,008.58/1,059,852.51 = 428,476.92/x
  3. Step 3: Cross multiply
    768,008.58x = 1,059,852.51 × 428,476.92
  4. Step 4: Simplify right side
    768,008.58x = 454,122,339,139.07
  5. Step 5: Solve for x
    x = 454,122,339,139.07/768,008.58
  6. Step 6: Final answer
    x = 591,298.52

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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.