Home / 1,570,230.30-2,355,345.45-1,318,287.90

Finding the Fourth Proportional to 1,570,230.30, 2,355,345.45 and 1,318,287.90

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Solution

The fourth proportional to 1,570,230.30, 2,355,345.45 and 1,318,287.90 is: 1,977,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,570,230.30 : 2,355,345.45 = 1,318,287.90 : x
  2. Step 2: Convert to fraction form
    1,570,230.30/2,355,345.45 = 1,318,287.90/x
  3. Step 3: Cross multiply
    1,570,230.30x = 2,355,345.45 × 1,318,287.90
  4. Step 4: Simplify right side
    1,570,230.30x = 3,105,023,407,055.06
  5. Step 5: Solve for x
    x = 3,105,023,407,055.06/1,570,230.30
  6. Step 6: Final answer
    x = 1,977,431.85

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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.