Home / 949,048.45-1,309,686.81-519,328.63

Finding the Fourth Proportional to 949,048.45, 1,309,686.81 and 519,328.63

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Solution

The fourth proportional to 949,048.45, 1,309,686.81 and 519,328.63 is: 716,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,048.45 : 1,309,686.81 = 519,328.63 : x
  2. Step 2: Convert to fraction form
    949,048.45/1,309,686.81 = 519,328.63/x
  3. Step 3: Cross multiply
    949,048.45x = 1,309,686.81 × 519,328.63
  4. Step 4: Simplify right side
    949,048.45x = 680,157,856,766.37
  5. Step 5: Solve for x
    x = 680,157,856,766.37/949,048.45
  6. Step 6: Final answer
    x = 716,673.48

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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.