Home / 386,646.20-579,969.30-346,095.80

Finding the Fourth Proportional to 386,646.20, 579,969.30 and 346,095.80

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Solution

The fourth proportional to 386,646.20, 579,969.30 and 346,095.80 is: 519,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,646.20 : 579,969.30 = 346,095.80 : x
  2. Step 2: Convert to fraction form
    386,646.20/579,969.30 = 346,095.80/x
  3. Step 3: Cross multiply
    386,646.20x = 579,969.30 × 346,095.80
  4. Step 4: Simplify right side
    386,646.20x = 200,724,938,858.94
  5. Step 5: Solve for x
    x = 200,724,938,858.94/386,646.20
  6. Step 6: Final answer
    x = 519,143.70

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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.