Home / 689,030.10-1,031,212.35-605,049.30

Finding the Fourth Proportional to 689,030.10, 1,031,212.35 and 605,049.30

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Solution

The fourth proportional to 689,030.10, 1,031,212.35 and 605,049.30 is: 905,525.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,030.10 : 1,031,212.35 = 605,049.30 : x
  2. Step 2: Convert to fraction form
    689,030.10/1,031,212.35 = 605,049.30/x
  3. Step 3: Cross multiply
    689,030.10x = 1,031,212.35 × 605,049.30
  4. Step 4: Simplify right side
    689,030.10x = 623,934,310,518.86
  5. Step 5: Solve for x
    x = 623,934,310,518.86/689,030.10
  6. Step 6: Final answer
    x = 905,525.48

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1.5x scale

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.