Home / 915,865.80-1,373,798.70-738,718.80

Finding the Fourth Proportional to 915,865.80, 1,373,798.70 and 738,718.80

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Solution

The fourth proportional to 915,865.80, 1,373,798.70 and 738,718.80 is: 1,108,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,865.80 : 1,373,798.70 = 738,718.80 : x
  2. Step 2: Convert to fraction form
    915,865.80/1,373,798.70 = 738,718.80/x
  3. Step 3: Cross multiply
    915,865.80x = 1,373,798.70 × 738,718.80
  4. Step 4: Simplify right side
    915,865.80x = 1,014,850,927,105.56
  5. Step 5: Solve for x
    x = 1,014,850,927,105.56/915,865.80
  6. Step 6: Final answer
    x = 1,108,078.20

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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.