Home / 915,710.80-1,370,455.80-803,736.40

Finding the Fourth Proportional to 915,710.80, 1,370,455.80 and 803,736.40

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Solution

The fourth proportional to 915,710.80, 1,370,455.80 and 803,736.40 is: 1,202,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,710.80 : 1,370,455.80 = 803,736.40 : x
  2. Step 2: Convert to fraction form
    915,710.80/1,370,455.80 = 803,736.40/x
  3. Step 3: Cross multiply
    915,710.80x = 1,370,455.80 × 803,736.40
  4. Step 4: Simplify right side
    915,710.80x = 1,101,485,211,051.12
  5. Step 5: Solve for x
    x = 1,101,485,211,051.12/915,710.80
  6. Step 6: Final answer
    x = 1,202,874.54

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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.