Home / 1,091,313.60-1,634,205.60-870,129.60

Finding the Fourth Proportional to 1,091,313.60, 1,634,205.60 and 870,129.60

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Solution

The fourth proportional to 1,091,313.60, 1,634,205.60 and 870,129.60 is: 1,302,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,313.60 : 1,634,205.60 = 870,129.60 : x
  2. Step 2: Convert to fraction form
    1,091,313.60/1,634,205.60 = 870,129.60/x
  3. Step 3: Cross multiply
    1,091,313.60x = 1,634,205.60 × 870,129.60
  4. Step 4: Simplify right side
    1,091,313.60x = 1,421,970,665,045.76
  5. Step 5: Solve for x
    x = 1,421,970,665,045.76/1,091,313.60
  6. Step 6: Final answer
    x = 1,302,989.96

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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.