Home / 877,756.52-1,317,015.09-309,543.59

Finding the Fourth Proportional to 877,756.52, 1,317,015.09 and 309,543.59

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Solution

The fourth proportional to 877,756.52, 1,317,015.09 and 309,543.59 is: 464,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,756.52 : 1,317,015.09 = 309,543.59 : x
  2. Step 2: Convert to fraction form
    877,756.52/1,317,015.09 = 309,543.59/x
  3. Step 3: Cross multiply
    877,756.52x = 1,317,015.09 × 309,543.59
  4. Step 4: Simplify right side
    877,756.52x = 407,673,582,335.31
  5. Step 5: Solve for x
    x = 407,673,582,335.31/877,756.52
  6. Step 6: Final answer
    x = 464,449.50

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1.5x scale

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.