Home / 909,252.90-1,363,933.95-278,172.18

Finding the Fourth Proportional to 909,252.90, 1,363,933.95 and 278,172.18

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Solution

The fourth proportional to 909,252.90, 1,363,933.95 and 278,172.18 is: 417,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,252.90 : 1,363,933.95 = 278,172.18 : x
  2. Step 2: Convert to fraction form
    909,252.90/1,363,933.95 = 278,172.18/x
  3. Step 3: Cross multiply
    909,252.90x = 1,363,933.95 × 278,172.18
  4. Step 4: Simplify right side
    909,252.90x = 379,408,480,247.51
  5. Step 5: Solve for x
    x = 379,408,480,247.51/909,252.90
  6. Step 6: Final answer
    x = 417,274.97

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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.