Home / 1,274,008.04-1,911,288.54-387,521

Finding the Fourth Proportional to 1,274,008.04, 1,911,288.54 and 387,521

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Solution

The fourth proportional to 1,274,008.04, 1,911,288.54 and 387,521 is: 581,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,008.04 : 1,911,288.54 = 387,521 : x
  2. Step 2: Convert to fraction form
    1,274,008.04/1,911,288.54 = 387,521/x
  3. Step 3: Cross multiply
    1,274,008.04x = 1,911,288.54 × 387,521
  4. Step 4: Simplify right side
    1,274,008.04x = 740,664,446,309.34
  5. Step 5: Solve for x
    x = 740,664,446,309.34/1,274,008.04
  6. Step 6: Final answer
    x = 581,365.60

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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.