Home / 816,487.50-1,126,791.18-453,917.42

Finding the Fourth Proportional to 816,487.50, 1,126,791.18 and 453,917.42

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Solution

The fourth proportional to 816,487.50, 1,126,791.18 and 453,917.42 is: 626,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,487.50 : 1,126,791.18 = 453,917.42 : x
  2. Step 2: Convert to fraction form
    816,487.50/1,126,791.18 = 453,917.42/x
  3. Step 3: Cross multiply
    816,487.50x = 1,126,791.18 × 453,917.42
  4. Step 4: Simplify right side
    816,487.50x = 511,470,139,670.40
  5. Step 5: Solve for x
    x = 511,470,139,670.40/816,487.50
  6. Step 6: Final answer
    x = 626,427.40

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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.