Home / 830,138.22-1,145,613.78-507,842.46

Finding the Fourth Proportional to 830,138.22, 1,145,613.78 and 507,842.46

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Solution

The fourth proportional to 830,138.22, 1,145,613.78 and 507,842.46 is: 700,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,138.22 : 1,145,613.78 = 507,842.46 : x
  2. Step 2: Convert to fraction form
    830,138.22/1,145,613.78 = 507,842.46/x
  3. Step 3: Cross multiply
    830,138.22x = 1,145,613.78 × 507,842.46
  4. Step 4: Simplify right side
    830,138.22x = 581,791,320,245.10
  5. Step 5: Solve for x
    x = 581,791,320,245.10/830,138.22
  6. Step 6: Final answer
    x = 700,836.69

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1.5x scale

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.