Home / 909,128.95-1,363,474.72-278,048.23

Finding the Fourth Proportional to 909,128.95, 1,363,474.72 and 278,048.23

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Solution

The fourth proportional to 909,128.95, 1,363,474.72 and 278,048.23 is: 417,005.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,128.95 : 1,363,474.72 = 278,048.23 : x
  2. Step 2: Convert to fraction form
    909,128.95/1,363,474.72 = 278,048.23/x
  3. Step 3: Cross multiply
    909,128.95x = 1,363,474.72 × 278,048.23
  4. Step 4: Simplify right side
    909,128.95x = 379,111,732,545.75
  5. Step 5: Solve for x
    x = 379,111,732,545.75/909,128.95
  6. Step 6: Final answer
    x = 417,005.46

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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.