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Finding the Fourth Proportional to 911,316.78, 1,366,970.23 and 371,570.96

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Solution

The fourth proportional to 911,316.78, 1,366,970.23 and 371,570.96 is: 557,354.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,316.78 : 1,366,970.23 = 371,570.96 : x
  2. Step 2: Convert to fraction form
    911,316.78/1,366,970.23 = 371,570.96/x
  3. Step 3: Cross multiply
    911,316.78x = 1,366,970.23 × 371,570.96
  4. Step 4: Simplify right side
    911,316.78x = 507,926,441,520.34
  5. Step 5: Solve for x
    x = 507,926,441,520.34/911,316.78
  6. Step 6: Final answer
    x = 557,354.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.