Home / 1,816,650.86-2,506,980.50-989,720.32

Finding the Fourth Proportional to 1,816,650.86, 2,506,980.50 and 989,720.32

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Solution

The fourth proportional to 1,816,650.86, 2,506,980.50 and 989,720.32 is: 1,365,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816,650.86 : 2,506,980.50 = 989,720.32 : x
  2. Step 2: Convert to fraction form
    1,816,650.86/2,506,980.50 = 989,720.32/x
  3. Step 3: Cross multiply
    1,816,650.86x = 2,506,980.50 × 989,720.32
  4. Step 4: Simplify right side
    1,816,650.86x = 2,481,209,542,693.76
  5. Step 5: Solve for x
    x = 2,481,209,542,693.76/1,816,650.86
  6. Step 6: Final answer
    x = 1,365,815.30

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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.