Home / 1,355,301.92-1,870,288.08-838,918.64

Finding the Fourth Proportional to 1,355,301.92, 1,870,288.08 and 838,918.64

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Solution

The fourth proportional to 1,355,301.92, 1,870,288.08 and 838,918.64 is: 1,157,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,301.92 : 1,870,288.08 = 838,918.64 : x
  2. Step 2: Convert to fraction form
    1,355,301.92/1,870,288.08 = 838,918.64/x
  3. Step 3: Cross multiply
    1,355,301.92x = 1,870,288.08 × 838,918.64
  4. Step 4: Simplify right side
    1,355,301.92x = 1,569,019,532,481.81
  5. Step 5: Solve for x
    x = 1,569,019,532,481.81/1,355,301.92
  6. Step 6: Final answer
    x = 1,157,690.04

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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.