Home / 949,289.81-1,309,969.67-519,486.90

Finding the Fourth Proportional to 949,289.81, 1,309,969.67 and 519,486.90

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Solution

The fourth proportional to 949,289.81, 1,309,969.67 and 519,486.90 is: 716,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,289.81 : 1,309,969.67 = 519,486.90 : x
  2. Step 2: Convert to fraction form
    949,289.81/1,309,969.67 = 519,486.90/x
  3. Step 3: Cross multiply
    949,289.81x = 1,309,969.67 × 519,486.90
  4. Step 4: Simplify right side
    949,289.81x = 680,512,080,364.89
  5. Step 5: Solve for x
    x = 680,512,080,364.89/949,289.81
  6. Step 6: Final answer
    x = 716,864.41

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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.