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Finding the Fourth Proportional to 1,029,148, 1,420,224.24 and 626,740

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Solution

The fourth proportional to 1,029,148, 1,420,224.24 and 626,740 is: 864,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,148 : 1,420,224.24 = 626,740 : x
  2. Step 2: Convert to fraction form
    1,029,148/1,420,224.24 = 626,740/x
  3. Step 3: Cross multiply
    1,029,148x = 1,420,224.24 × 626,740
  4. Step 4: Simplify right side
    1,029,148x = 890,111,340,177.60
  5. Step 5: Solve for x
    x = 890,111,340,177.60/1,029,148
  6. Step 6: Final answer
    x = 864,901.20

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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.