Home / 712,643.66-1,069,015.37-286,179.47

Finding the Fourth Proportional to 712,643.66, 1,069,015.37 and 286,179.47

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Solution

The fourth proportional to 712,643.66, 1,069,015.37 and 286,179.47 is: 429,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,643.66 : 1,069,015.37 = 286,179.47 : x
  2. Step 2: Convert to fraction form
    712,643.66/1,069,015.37 = 286,179.47/x
  3. Step 3: Cross multiply
    712,643.66x = 1,069,015.37 × 286,179.47
  4. Step 4: Simplify right side
    712,643.66x = 305,930,252,008.45
  5. Step 5: Solve for x
    x = 305,930,252,008.45/712,643.66
  6. Step 6: Final answer
    x = 429,289.24

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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.