Home / 684,678.06-944,782.56-378,705.78

Finding the Fourth Proportional to 684,678.06, 944,782.56 and 378,705.78

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Solution

The fourth proportional to 684,678.06, 944,782.56 and 378,705.78 is: 522,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,678.06 : 944,782.56 = 378,705.78 : x
  2. Step 2: Convert to fraction form
    684,678.06/944,782.56 = 378,705.78/x
  3. Step 3: Cross multiply
    684,678.06x = 944,782.56 × 378,705.78
  4. Step 4: Simplify right side
    684,678.06x = 357,794,616,315.20
  5. Step 5: Solve for x
    x = 357,794,616,315.20/684,678.06
  6. Step 6: Final answer
    x = 522,573.51

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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.