Home / 879,117.40-1,318,676.10-826,629.40

Finding the Fourth Proportional to 879,117.40, 1,318,676.10 and 826,629.40

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Solution

The fourth proportional to 879,117.40, 1,318,676.10 and 826,629.40 is: 1,239,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,117.40 : 1,318,676.10 = 826,629.40 : x
  2. Step 2: Convert to fraction form
    879,117.40/1,318,676.10 = 826,629.40/x
  3. Step 3: Cross multiply
    879,117.40x = 1,318,676.10 × 826,629.40
  4. Step 4: Simplify right side
    879,117.40x = 1,090,056,433,337.34
  5. Step 5: Solve for x
    x = 1,090,056,433,337.34/879,117.40
  6. Step 6: Final answer
    x = 1,239,944.10

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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.