Home / 1,319,576.80-1,821,023.76-715,964.32

Finding the Fourth Proportional to 1,319,576.80, 1,821,023.76 and 715,964.32

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Solution

The fourth proportional to 1,319,576.80, 1,821,023.76 and 715,964.32 is: 988,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,576.80 : 1,821,023.76 = 715,964.32 : x
  2. Step 2: Convert to fraction form
    1,319,576.80/1,821,023.76 = 715,964.32/x
  3. Step 3: Cross multiply
    1,319,576.80x = 1,821,023.76 × 715,964.32
  4. Step 4: Simplify right side
    1,319,576.80x = 1,303,788,038,032.24
  5. Step 5: Solve for x
    x = 1,303,788,038,032.24/1,319,576.80
  6. Step 6: Final answer
    x = 988,034.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.