Home / 545,558.37-817,812.68-279,444.21

Finding the Fourth Proportional to 545,558.37, 817,812.68 and 279,444.21

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Solution

The fourth proportional to 545,558.37, 817,812.68 and 279,444.21 is: 418,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,558.37 : 817,812.68 = 279,444.21 : x
  2. Step 2: Convert to fraction form
    545,558.37/817,812.68 = 279,444.21/x
  3. Step 3: Cross multiply
    545,558.37x = 817,812.68 × 279,444.21
  4. Step 4: Simplify right side
    545,558.37x = 228,533,016,893.36
  5. Step 5: Solve for x
    x = 228,533,016,893.36/545,558.37
  6. Step 6: Final answer
    x = 418,897.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.