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Finding the Fourth Proportional to 1,260,510, 1,890,765 and 374,046

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Solution

The fourth proportional to 1,260,510, 1,890,765 and 374,046 is: 561,069

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,510 : 1,890,765 = 374,046 : x
  2. Step 2: Convert to fraction form
    1,260,510/1,890,765 = 374,046/x
  3. Step 3: Cross multiply
    1,260,510x = 1,890,765 × 374,046
  4. Step 4: Simplify right side
    1,260,510x = 707,233,085,190
  5. Step 5: Solve for x
    x = 707,233,085,190/1,260,510
  6. Step 6: Final answer
    x = 561,069

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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.