Home / 810,276.96-1,215,357.12-354,914.40

Finding the Fourth Proportional to 810,276.96, 1,215,357.12 and 354,914.40

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Solution

The fourth proportional to 810,276.96, 1,215,357.12 and 354,914.40 is: 532,346.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,276.96 : 1,215,357.12 = 354,914.40 : x
  2. Step 2: Convert to fraction form
    810,276.96/1,215,357.12 = 354,914.40/x
  3. Step 3: Cross multiply
    810,276.96x = 1,215,357.12 × 354,914.40
  4. Step 4: Simplify right side
    810,276.96x = 431,347,743,030.53
  5. Step 5: Solve for x
    x = 431,347,743,030.53/810,276.96
  6. Step 6: Final answer
    x = 532,346.05

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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.