Home / 840,556.08-1,159,999.92-478,013.04

Finding the Fourth Proportional to 840,556.08, 1,159,999.92 and 478,013.04

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Solution

The fourth proportional to 840,556.08, 1,159,999.92 and 478,013.04 is: 659,676.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,556.08 : 1,159,999.92 = 478,013.04 : x
  2. Step 2: Convert to fraction form
    840,556.08/1,159,999.92 = 478,013.04/x
  3. Step 3: Cross multiply
    840,556.08x = 1,159,999.92 × 478,013.04
  4. Step 4: Simplify right side
    840,556.08x = 554,495,088,158.96
  5. Step 5: Solve for x
    x = 554,495,088,158.96/840,556.08
  6. Step 6: Final answer
    x = 659,676.49

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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.