Home / 909,129.58-1,363,475.65-278,048.86

Finding the Fourth Proportional to 909,129.58, 1,363,475.65 and 278,048.86

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Solution

The fourth proportional to 909,129.58, 1,363,475.65 and 278,048.86 is: 417,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,129.58 : 1,363,475.65 = 278,048.86 : x
  2. Step 2: Convert to fraction form
    909,129.58/1,363,475.65 = 278,048.86/x
  3. Step 3: Cross multiply
    909,129.58x = 1,363,475.65 × 278,048.86
  4. Step 4: Simplify right side
    909,129.58x = 379,112,850,120.26
  5. Step 5: Solve for x
    x = 379,112,850,120.26/909,129.58
  6. Step 6: Final answer
    x = 417,006.40

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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.