Home / 2,588,332.40-3,886,435.20-1,989,969.20

Finding the Fourth Proportional to 2,588,332.40, 3,886,435.20 and 1,989,969.20

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Solution

The fourth proportional to 2,588,332.40, 3,886,435.20 and 1,989,969.20 is: 2,987,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588,332.40 : 3,886,435.20 = 1,989,969.20 : x
  2. Step 2: Convert to fraction form
    2,588,332.40/3,886,435.20 = 1,989,969.20/x
  3. Step 3: Cross multiply
    2,588,332.40x = 3,886,435.20 × 1,989,969.20
  4. Step 4: Simplify right side
    2,588,332.40x = 7,733,886,345,795.84
  5. Step 5: Solve for x
    x = 7,733,886,345,795.84/2,588,332.40
  6. Step 6: Final answer
    x = 2,987,980.35

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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.