Home / 877,568.60-1,316,352.90-212,720.60

Finding the Fourth Proportional to 877,568.60, 1,316,352.90 and 212,720.60

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Solution

The fourth proportional to 877,568.60, 1,316,352.90 and 212,720.60 is: 319,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,568.60 : 1,316,352.90 = 212,720.60 : x
  2. Step 2: Convert to fraction form
    877,568.60/1,316,352.90 = 212,720.60/x
  3. Step 3: Cross multiply
    877,568.60x = 1,316,352.90 × 212,720.60
  4. Step 4: Simplify right side
    877,568.60x = 280,015,378,699.74
  5. Step 5: Solve for x
    x = 280,015,378,699.74/877,568.60
  6. Step 6: Final answer
    x = 319,080.90

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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.