Home / 877,628.20-1,316,442.30-809,199.40

Finding the Fourth Proportional to 877,628.20, 1,316,442.30 and 809,199.40

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Solution

The fourth proportional to 877,628.20, 1,316,442.30 and 809,199.40 is: 1,213,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,628.20 : 1,316,442.30 = 809,199.40 : x
  2. Step 2: Convert to fraction form
    877,628.20/1,316,442.30 = 809,199.40/x
  3. Step 3: Cross multiply
    877,628.20x = 1,316,442.30 × 809,199.40
  4. Step 4: Simplify right side
    877,628.20x = 1,065,264,319,294.62
  5. Step 5: Solve for x
    x = 1,065,264,319,294.62/877,628.20
  6. Step 6: Final answer
    x = 1,213,799.10

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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.