Home / 877,618.20-1,316,427.30-809,189.40

Finding the Fourth Proportional to 877,618.20, 1,316,427.30 and 809,189.40

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Solution

The fourth proportional to 877,618.20, 1,316,427.30 and 809,189.40 is: 1,213,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,618.20 : 1,316,427.30 = 809,189.40 : x
  2. Step 2: Convert to fraction form
    877,618.20/1,316,427.30 = 809,189.40/x
  3. Step 3: Cross multiply
    877,618.20x = 1,316,427.30 × 809,189.40
  4. Step 4: Simplify right side
    877,618.20x = 1,065,239,017,030.62
  5. Step 5: Solve for x
    x = 1,065,239,017,030.62/877,618.20
  6. Step 6: Final answer
    x = 1,213,784.10

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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.