Home / 1,989,676.23-2,985,145.20-710,256.29

Finding the Fourth Proportional to 1,989,676.23, 2,985,145.20 and 710,256.29

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Solution

The fourth proportional to 1,989,676.23, 2,985,145.20 and 710,256.29 is: 1,065,609.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,676.23 : 2,985,145.20 = 710,256.29 : x
  2. Step 2: Convert to fraction form
    1,989,676.23/2,985,145.20 = 710,256.29/x
  3. Step 3: Cross multiply
    1,989,676.23x = 2,985,145.20 × 710,256.29
  4. Step 4: Simplify right side
    1,989,676.23x = 2,120,218,139,937.58
  5. Step 5: Solve for x
    x = 2,120,218,139,937.58/1,989,676.23
  6. Step 6: Final answer
    x = 1,065,609.63

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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.