Home / 798,461.30-1,197,880.73-258,716.68

Finding the Fourth Proportional to 798,461.30, 1,197,880.73 and 258,716.68

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Solution

The fourth proportional to 798,461.30, 1,197,880.73 and 258,716.68 is: 388,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,461.30 : 1,197,880.73 = 258,716.68 : x
  2. Step 2: Convert to fraction form
    798,461.30/1,197,880.73 = 258,716.68/x
  3. Step 3: Cross multiply
    798,461.30x = 1,197,880.73 × 258,716.68
  4. Step 4: Simplify right side
    798,461.30x = 309,911,730,376.84
  5. Step 5: Solve for x
    x = 309,911,730,376.84/798,461.30
  6. Step 6: Final answer
    x = 388,136.20

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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.