Home / 1,280,137.87-1,766,643.93-736,273.81

Finding the Fourth Proportional to 1,280,137.87, 1,766,643.93 and 736,273.81

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Solution

The fourth proportional to 1,280,137.87, 1,766,643.93 and 736,273.81 is: 1,016,088.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,137.87 : 1,766,643.93 = 736,273.81 : x
  2. Step 2: Convert to fraction form
    1,280,137.87/1,766,643.93 = 736,273.81/x
  3. Step 3: Cross multiply
    1,280,137.87x = 1,766,643.93 × 736,273.81
  4. Step 4: Simplify right side
    1,280,137.87x = 1,300,733,657,254.47
  5. Step 5: Solve for x
    x = 1,300,733,657,254.47/1,280,137.87
  6. Step 6: Final answer
    x = 1,016,088.73

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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.