Home / 816,488.50-1,126,792.56-453,918.42

Finding the Fourth Proportional to 816,488.50, 1,126,792.56 and 453,918.42

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Solution

The fourth proportional to 816,488.50, 1,126,792.56 and 453,918.42 is: 626,428.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,488.50 : 1,126,792.56 = 453,918.42 : x
  2. Step 2: Convert to fraction form
    816,488.50/1,126,792.56 = 453,918.42/x
  3. Step 3: Cross multiply
    816,488.50x = 1,126,792.56 × 453,918.42
  4. Step 4: Simplify right side
    816,488.50x = 511,471,898,502.96
  5. Step 5: Solve for x
    x = 511,471,898,502.96/816,488.50
  6. Step 6: Final answer
    x = 626,428.78

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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.