Home / 909,256.90-1,363,939.95-278,176.18

Finding the Fourth Proportional to 909,256.90, 1,363,939.95 and 278,176.18

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Solution

The fourth proportional to 909,256.90, 1,363,939.95 and 278,176.18 is: 417,280.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,256.90 : 1,363,939.95 = 278,176.18 : x
  2. Step 2: Convert to fraction form
    909,256.90/1,363,939.95 = 278,176.18/x
  3. Step 3: Cross multiply
    909,256.90x = 1,363,939.95 × 278,176.18
  4. Step 4: Simplify right side
    909,256.90x = 379,415,605,040.39
  5. Step 5: Solve for x
    x = 379,415,605,040.39/909,256.90
  6. Step 6: Final answer
    x = 417,280.97

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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.