Home / 626,825.30-865,022.32-340,345.38

Finding the Fourth Proportional to 626,825.30, 865,022.32 and 340,345.38

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Solution

The fourth proportional to 626,825.30, 865,022.32 and 340,345.38 is: 469,678.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,825.30 : 865,022.32 = 340,345.38 : x
  2. Step 2: Convert to fraction form
    626,825.30/865,022.32 = 340,345.38/x
  3. Step 3: Cross multiply
    626,825.30x = 865,022.32 × 340,345.38
  4. Step 4: Simplify right side
    626,825.30x = 294,406,350,866.92
  5. Step 5: Solve for x
    x = 294,406,350,866.92/626,825.30
  6. Step 6: Final answer
    x = 469,678.48

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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.