Home / 1,319,296.57-1,820,632.76-715,684.57

Finding the Fourth Proportional to 1,319,296.57, 1,820,632.76 and 715,684.57

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Solution

The fourth proportional to 1,319,296.57, 1,820,632.76 and 715,684.57 is: 987,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,296.57 : 1,820,632.76 = 715,684.57 : x
  2. Step 2: Convert to fraction form
    1,319,296.57/1,820,632.76 = 715,684.57/x
  3. Step 3: Cross multiply
    1,319,296.57x = 1,820,632.76 × 715,684.57
  4. Step 4: Simplify right side
    1,319,296.57x = 1,302,998,764,865.35
  5. Step 5: Solve for x
    x = 1,302,998,764,865.35/1,319,296.57
  6. Step 6: Final answer
    x = 987,646.60

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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.