Home / 949,154.70-1,309,815.99-519,426.21

Finding the Fourth Proportional to 949,154.70, 1,309,815.99 and 519,426.21

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Solution

The fourth proportional to 949,154.70, 1,309,815.99 and 519,426.21 is: 716,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,154.70 : 1,309,815.99 = 519,426.21 : x
  2. Step 2: Convert to fraction form
    949,154.70/1,309,815.99 = 519,426.21/x
  3. Step 3: Cross multiply
    949,154.70x = 1,309,815.99 × 519,426.21
  4. Step 4: Simplify right side
    949,154.70x = 680,352,755,483.10
  5. Step 5: Solve for x
    x = 680,352,755,483.10/949,154.70
  6. Step 6: Final answer
    x = 716,798.60

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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.