Home / 770,678.47-1,063,538.25-426,538.08

Finding the Fourth Proportional to 770,678.47, 1,063,538.25 and 426,538.08

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Solution

The fourth proportional to 770,678.47, 1,063,538.25 and 426,538.08 is: 588,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,678.47 : 1,063,538.25 = 426,538.08 : x
  2. Step 2: Convert to fraction form
    770,678.47/1,063,538.25 = 426,538.08/x
  3. Step 3: Cross multiply
    770,678.47x = 1,063,538.25 × 426,538.08
  4. Step 4: Simplify right side
    770,678.47x = 453,639,560,970.12
  5. Step 5: Solve for x
    x = 453,639,560,970.12/770,678.47
  6. Step 6: Final answer
    x = 588,623.63

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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.