Home / 949,073.69-1,309,721.81-519,353.91

Finding the Fourth Proportional to 949,073.69, 1,309,721.81 and 519,353.91

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Solution

The fourth proportional to 949,073.69, 1,309,721.81 and 519,353.91 is: 716,708.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,073.69 : 1,309,721.81 = 519,353.91 : x
  2. Step 2: Convert to fraction form
    949,073.69/1,309,721.81 = 519,353.91/x
  3. Step 3: Cross multiply
    949,073.69x = 1,309,721.81 × 519,353.91
  4. Step 4: Simplify right side
    949,073.69x = 680,209,140,439.01
  5. Step 5: Solve for x
    x = 680,209,140,439.01/949,073.69
  6. Step 6: Final answer
    x = 716,708.46

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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.