Home / 912,968.78-1,259,934.23-505,063.72

Finding the Fourth Proportional to 912,968.78, 1,259,934.23 and 505,063.72

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Solution

The fourth proportional to 912,968.78, 1,259,934.23 and 505,063.72 is: 697,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,968.78 : 1,259,934.23 = 505,063.72 : x
  2. Step 2: Convert to fraction form
    912,968.78/1,259,934.23 = 505,063.72/x
  3. Step 3: Cross multiply
    912,968.78x = 1,259,934.23 × 505,063.72
  4. Step 4: Simplify right side
    912,968.78x = 636,347,060,334.15
  5. Step 5: Solve for x
    x = 636,347,060,334.15/912,968.78
  6. Step 6: Final answer
    x = 697,008.57

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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.