Home / 909,254.40-1,363,936.20-278,173.68

Finding the Fourth Proportional to 909,254.40, 1,363,936.20 and 278,173.68

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Solution

The fourth proportional to 909,254.40, 1,363,936.20 and 278,173.68 is: 417,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,254.40 : 1,363,936.20 = 278,173.68 : x
  2. Step 2: Convert to fraction form
    909,254.40/1,363,936.20 = 278,173.68/x
  3. Step 3: Cross multiply
    909,254.40x = 1,363,936.20 × 278,173.68
  4. Step 4: Simplify right side
    909,254.40x = 379,411,152,039.22
  5. Step 5: Solve for x
    x = 379,411,152,039.22/909,254.40
  6. Step 6: Final answer
    x = 417,277.22

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1.5x scale

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.