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Finding the Fourth Proportional to 671,497.94, 927,009.48 and 518,191.67

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Solution

The fourth proportional to 671,497.94, 927,009.48 and 518,191.67 is: 715,368.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,497.94 : 927,009.48 = 518,191.67 : x
  2. Step 2: Convert to fraction form
    671,497.94/927,009.48 = 518,191.67/x
  3. Step 3: Cross multiply
    671,497.94x = 927,009.48 × 518,191.67
  4. Step 4: Simplify right side
    671,497.94x = 480,368,585,911.98
  5. Step 5: Solve for x
    x = 480,368,585,911.98/671,497.94
  6. Step 6: Final answer
    x = 715,368.67

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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.