Home / 1,312,321.29-1,810,911.19-723,594.55

Finding the Fourth Proportional to 1,312,321.29, 1,810,911.19 and 723,594.55

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Solution

The fourth proportional to 1,312,321.29, 1,810,911.19 and 723,594.55 is: 998,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,321.29 : 1,810,911.19 = 723,594.55 : x
  2. Step 2: Convert to fraction form
    1,312,321.29/1,810,911.19 = 723,594.55/x
  3. Step 3: Cross multiply
    1,312,321.29x = 1,810,911.19 × 723,594.55
  4. Step 4: Simplify right side
    1,312,321.29x = 1,310,365,467,618.01
  5. Step 5: Solve for x
    x = 1,310,365,467,618.01/1,312,321.29
  6. Step 6: Final answer
    x = 998,509.65

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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.