Home / 684,313.50-944,333.01-378,384.54

Finding the Fourth Proportional to 684,313.50, 944,333.01 and 378,384.54

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Solution

The fourth proportional to 684,313.50, 944,333.01 and 378,384.54 is: 522,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,313.50 : 944,333.01 = 378,384.54 : x
  2. Step 2: Convert to fraction form
    684,313.50/944,333.01 = 378,384.54/x
  3. Step 3: Cross multiply
    684,313.50x = 944,333.01 × 378,384.54
  4. Step 4: Simplify right side
    684,313.50x = 357,321,011,595.67
  5. Step 5: Solve for x
    x = 357,321,011,595.67/684,313.50
  6. Step 6: Final answer
    x = 522,159.82

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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.