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Finding the Fourth Proportional to 455,330.64, 628,400.93 and 264,332.64

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Solution

The fourth proportional to 455,330.64, 628,400.93 and 264,332.64 is: 364,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,330.64 : 628,400.93 = 264,332.64 : x
  2. Step 2: Convert to fraction form
    455,330.64/628,400.93 = 264,332.64/x
  3. Step 3: Cross multiply
    455,330.64x = 628,400.93 × 264,332.64
  4. Step 4: Simplify right side
    455,330.64x = 166,106,875,483.69
  5. Step 5: Solve for x
    x = 166,106,875,483.69/455,330.64
  6. Step 6: Final answer
    x = 364,804.96

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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.