Home / 810,000.40-1,215,000.60-792,504.40

Finding the Fourth Proportional to 810,000.40, 1,215,000.60 and 792,504.40

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Solution

The fourth proportional to 810,000.40, 1,215,000.60 and 792,504.40 is: 1,188,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,000.40 : 1,215,000.60 = 792,504.40 : x
  2. Step 2: Convert to fraction form
    810,000.40/1,215,000.60 = 792,504.40/x
  3. Step 3: Cross multiply
    810,000.40x = 1,215,000.60 × 792,504.40
  4. Step 4: Simplify right side
    810,000.40x = 962,893,321,502.64
  5. Step 5: Solve for x
    x = 962,893,321,502.64/810,000.40
  6. Step 6: Final answer
    x = 1,188,756.60

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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.