Home / 742,747.30-1,113,136.80-658,110.40

Finding the Fourth Proportional to 742,747.30, 1,113,136.80 and 658,110.40

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Solution

The fourth proportional to 742,747.30, 1,113,136.80 and 658,110.40 is: 986,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,747.30 : 1,113,136.80 = 658,110.40 : x
  2. Step 2: Convert to fraction form
    742,747.30/1,113,136.80 = 658,110.40/x
  3. Step 3: Cross multiply
    742,747.30x = 1,113,136.80 × 658,110.40
  4. Step 4: Simplify right side
    742,747.30x = 732,566,904,702.72
  5. Step 5: Solve for x
    x = 732,566,904,702.72/742,747.30
  6. Step 6: Final answer
    x = 986,293.60

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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.