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Finding the Fourth Proportional to 704,725.60, 972,521.94 and 382,435.68

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Solution

The fourth proportional to 704,725.60, 972,521.94 and 382,435.68 is: 527,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,725.60 : 972,521.94 = 382,435.68 : x
  2. Step 2: Convert to fraction form
    704,725.60/972,521.94 = 382,435.68/x
  3. Step 3: Cross multiply
    704,725.60x = 972,521.94 × 382,435.68
  4. Step 4: Simplify right side
    704,725.60x = 371,927,089,438.82
  5. Step 5: Solve for x
    x = 371,927,089,438.82/704,725.60
  6. Step 6: Final answer
    x = 527,761.57

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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.