Home / 1,620,181.60-2,425,606.80-990,325.60

Finding the Fourth Proportional to 1,620,181.60, 2,425,606.80 and 990,325.60

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Solution

The fourth proportional to 1,620,181.60, 2,425,606.80 and 990,325.60 is: 1,482,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,181.60 : 2,425,606.80 = 990,325.60 : x
  2. Step 2: Convert to fraction form
    1,620,181.60/2,425,606.80 = 990,325.60/x
  3. Step 3: Cross multiply
    1,620,181.60x = 2,425,606.80 × 990,325.60
  4. Step 4: Simplify right side
    1,620,181.60x = 2,402,140,509,574.08
  5. Step 5: Solve for x
    x = 2,402,140,509,574.08/1,620,181.60
  6. Step 6: Final answer
    x = 1,482,636.58

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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.