Home / 816,482.61-1,126,784.46-453,912.53

Finding the Fourth Proportional to 816,482.61, 1,126,784.46 and 453,912.53

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Solution

The fourth proportional to 816,482.61, 1,126,784.46 and 453,912.53 is: 626,420.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,482.61 : 1,126,784.46 = 453,912.53 : x
  2. Step 2: Convert to fraction form
    816,482.61/1,126,784.46 = 453,912.53/x
  3. Step 3: Cross multiply
    816,482.61x = 1,126,784.46 × 453,912.53
  4. Step 4: Simplify right side
    816,482.61x = 511,461,581,892.63
  5. Step 5: Solve for x
    x = 511,461,581,892.63/816,482.61
  6. Step 6: Final answer
    x = 626,420.67

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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.