Home / 909,927.90-1,364,956.65-278,840.70

Finding the Fourth Proportional to 909,927.90, 1,364,956.65 and 278,840.70

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Solution

The fourth proportional to 909,927.90, 1,364,956.65 and 278,840.70 is: 418,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,927.90 : 1,364,956.65 = 278,840.70 : x
  2. Step 2: Convert to fraction form
    909,927.90/1,364,956.65 = 278,840.70/x
  3. Step 3: Cross multiply
    909,927.90x = 1,364,956.65 × 278,840.70
  4. Step 4: Simplify right side
    909,927.90x = 380,605,467,755.66
  5. Step 5: Solve for x
    x = 380,605,467,755.66/909,927.90
  6. Step 6: Final answer
    x = 418,280.91

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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.