Home / 684,619.46-944,702.12-378,647.22

Finding the Fourth Proportional to 684,619.46, 944,702.12 and 378,647.22

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Solution

The fourth proportional to 684,619.46, 944,702.12 and 378,647.22 is: 522,492.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,619.46 : 944,702.12 = 378,647.22 : x
  2. Step 2: Convert to fraction form
    684,619.46/944,702.12 = 378,647.22/x
  3. Step 3: Cross multiply
    684,619.46x = 944,702.12 × 378,647.22
  4. Step 4: Simplify right side
    684,619.46x = 357,708,835,955.36
  5. Step 5: Solve for x
    x = 357,708,835,955.36/684,619.46
  6. Step 6: Final answer
    x = 522,492.94

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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.