Home / 909,210.45-1,363,766.58-278,124.33

Finding the Fourth Proportional to 909,210.45, 1,363,766.58 and 278,124.33

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Solution

The fourth proportional to 909,210.45, 1,363,766.58 and 278,124.33 is: 417,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,210.45 : 1,363,766.58 = 278,124.33 : x
  2. Step 2: Convert to fraction form
    909,210.45/1,363,766.58 = 278,124.33/x
  3. Step 3: Cross multiply
    909,210.45x = 1,363,766.58 × 278,124.33
  4. Step 4: Simplify right side
    909,210.45x = 379,296,666,338.89
  5. Step 5: Solve for x
    x = 379,296,666,338.89/909,210.45
  6. Step 6: Final answer
    x = 417,171.48

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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.