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Finding the Fourth Proportional to 470,897.37, 649,820.45 and 256,037.61

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Solution

The fourth proportional to 470,897.37, 649,820.45 and 256,037.61 is: 353,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,897.37 : 649,820.45 = 256,037.61 : x
  2. Step 2: Convert to fraction form
    470,897.37/649,820.45 = 256,037.61/x
  3. Step 3: Cross multiply
    470,897.37x = 649,820.45 × 256,037.61
  4. Step 4: Simplify right side
    470,897.37x = 166,378,474,947.12
  5. Step 5: Solve for x
    x = 166,378,474,947.12/470,897.37
  6. Step 6: Final answer
    x = 353,322.16

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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.