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Finding the Fourth Proportional to 549,316, 757,992.27 and 319,923.46

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Solution

The fourth proportional to 549,316, 757,992.27 and 319,923.46 is: 441,457.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,316 : 757,992.27 = 319,923.46 : x
  2. Step 2: Convert to fraction form
    549,316/757,992.27 = 319,923.46/x
  3. Step 3: Cross multiply
    549,316x = 757,992.27 × 319,923.46
  4. Step 4: Simplify right side
    549,316x = 242,499,509,671.65
  5. Step 5: Solve for x
    x = 242,499,509,671.65/549,316
  6. Step 6: Final answer
    x = 441,457.21

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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.