Home / 689,863.60-1,034,795.69-310,341.04

Finding the Fourth Proportional to 689,863.60, 1,034,795.69 and 310,341.04

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Solution

The fourth proportional to 689,863.60, 1,034,795.69 and 310,341.04 is: 465,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,863.60 : 1,034,795.69 = 310,341.04 : x
  2. Step 2: Convert to fraction form
    689,863.60/1,034,795.69 = 310,341.04/x
  3. Step 3: Cross multiply
    689,863.60x = 1,034,795.69 × 310,341.04
  4. Step 4: Simplify right side
    689,863.60x = 321,139,567,647.20
  5. Step 5: Solve for x
    x = 321,139,567,647.20/689,863.60
  6. Step 6: Final answer
    x = 465,511.69

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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.