Home / 859,578.75-1,289,368.13-268,602.75

Finding the Fourth Proportional to 859,578.75, 1,289,368.13 and 268,602.75

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Solution

The fourth proportional to 859,578.75, 1,289,368.13 and 268,602.75 is: 402,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,578.75 : 1,289,368.13 = 268,602.75 : x
  2. Step 2: Convert to fraction form
    859,578.75/1,289,368.13 = 268,602.75/x
  3. Step 3: Cross multiply
    859,578.75x = 1,289,368.13 × 268,602.75
  4. Step 4: Simplify right side
    859,578.75x = 346,327,824,137.34
  5. Step 5: Solve for x
    x = 346,327,824,137.34/859,578.75
  6. Step 6: Final answer
    x = 402,904.13

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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.