Home / 1,221,530.60-1,831,712.57-716,245.45

Finding the Fourth Proportional to 1,221,530.60, 1,831,712.57 and 716,245.45

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Solution

The fourth proportional to 1,221,530.60, 1,831,712.57 and 716,245.45 is: 1,074,026.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,530.60 : 1,831,712.57 = 716,245.45 : x
  2. Step 2: Convert to fraction form
    1,221,530.60/1,831,712.57 = 716,245.45/x
  3. Step 3: Cross multiply
    1,221,530.60x = 1,831,712.57 × 716,245.45
  4. Step 4: Simplify right side
    1,221,530.60x = 1,311,955,781,230.52
  5. Step 5: Solve for x
    x = 1,311,955,781,230.52/1,221,530.60
  6. Step 6: Final answer
    x = 1,074,026.13

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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.