Home / 1,221,323.10-1,831,984.65-772,550.70

Finding the Fourth Proportional to 1,221,323.10, 1,831,984.65 and 772,550.70

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Solution

The fourth proportional to 1,221,323.10, 1,831,984.65 and 772,550.70 is: 1,158,826.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,323.10 : 1,831,984.65 = 772,550.70 : x
  2. Step 2: Convert to fraction form
    1,221,323.10/1,831,984.65 = 772,550.70/x
  3. Step 3: Cross multiply
    1,221,323.10x = 1,831,984.65 × 772,550.70
  4. Step 4: Simplify right side
    1,221,323.10x = 1,415,301,023,746.76
  5. Step 5: Solve for x
    x = 1,415,301,023,746.76/1,221,323.10
  6. Step 6: Final answer
    x = 1,158,826.05

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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.