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Finding the Fourth Proportional to 1,575,972, 2,363,958 and 394,020

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Solution

The fourth proportional to 1,575,972, 2,363,958 and 394,020 is: 591,030

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575,972 : 2,363,958 = 394,020 : x
  2. Step 2: Convert to fraction form
    1,575,972/2,363,958 = 394,020/x
  3. Step 3: Cross multiply
    1,575,972x = 2,363,958 × 394,020
  4. Step 4: Simplify right side
    1,575,972x = 931,446,731,160
  5. Step 5: Solve for x
    x = 931,446,731,160/1,575,972
  6. Step 6: Final answer
    x = 591,030

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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.