Home / 1,297,019.90-1,789,702.34-724,047.50

Finding the Fourth Proportional to 1,297,019.90, 1,789,702.34 and 724,047.50

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Solution

The fourth proportional to 1,297,019.90, 1,789,702.34 and 724,047.50 is: 999,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,019.90 : 1,789,702.34 = 724,047.50 : x
  2. Step 2: Convert to fraction form
    1,297,019.90/1,789,702.34 = 724,047.50/x
  3. Step 3: Cross multiply
    1,297,019.90x = 1,789,702.34 × 724,047.50
  4. Step 4: Simplify right side
    1,297,019.90x = 1,295,829,505,021.15
  5. Step 5: Solve for x
    x = 1,295,829,505,021.15/1,297,019.90
  6. Step 6: Final answer
    x = 999,082.21

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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.