Home / 671,333.12-1,006,865.76-430,735.04

Finding the Fourth Proportional to 671,333.12, 1,006,865.76 and 430,735.04

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Solution

The fourth proportional to 671,333.12, 1,006,865.76 and 430,735.04 is: 646,016.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,333.12 : 1,006,865.76 = 430,735.04 : x
  2. Step 2: Convert to fraction form
    671,333.12/1,006,865.76 = 430,735.04/x
  3. Step 3: Cross multiply
    671,333.12x = 1,006,865.76 × 430,735.04
  4. Step 4: Simplify right side
    671,333.12x = 433,692,363,408.23
  5. Step 5: Solve for x
    x = 433,692,363,408.23/671,333.12
  6. Step 6: Final answer
    x = 646,016.64

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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.