Home / 831,675.98-1,147,430.94-678,449.29

Finding the Fourth Proportional to 831,675.98, 1,147,430.94 and 678,449.29

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Solution

The fourth proportional to 831,675.98, 1,147,430.94 and 678,449.29 is: 936,030.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,675.98 : 1,147,430.94 = 678,449.29 : x
  2. Step 2: Convert to fraction form
    831,675.98/1,147,430.94 = 678,449.29/x
  3. Step 3: Cross multiply
    831,675.98x = 1,147,430.94 × 678,449.29
  4. Step 4: Simplify right side
    831,675.98x = 778,473,706,567.03
  5. Step 5: Solve for x
    x = 778,473,706,567.03/831,675.98
  6. Step 6: Final answer
    x = 936,030.05

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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.