Home / 684,399.72-944,444.52-378,456.24

Finding the Fourth Proportional to 684,399.72, 944,444.52 and 378,456.24

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Solution

The fourth proportional to 684,399.72, 944,444.52 and 378,456.24 is: 522,254.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,399.72 : 944,444.52 = 378,456.24 : x
  2. Step 2: Convert to fraction form
    684,399.72/944,444.52 = 378,456.24/x
  3. Step 3: Cross multiply
    684,399.72x = 944,444.52 × 378,456.24
  4. Step 4: Simplify right side
    684,399.72x = 357,430,921,927.81
  5. Step 5: Solve for x
    x = 357,430,921,927.81/684,399.72
  6. Step 6: Final answer
    x = 522,254.63

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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.