Home / 1,362,783.45-2,043,683.10-688,640.70

Finding the Fourth Proportional to 1,362,783.45, 2,043,683.10 and 688,640.70

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Solution

The fourth proportional to 1,362,783.45, 2,043,683.10 and 688,640.70 is: 1,032,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,783.45 : 2,043,683.10 = 688,640.70 : x
  2. Step 2: Convert to fraction form
    1,362,783.45/2,043,683.10 = 688,640.70/x
  3. Step 3: Cross multiply
    1,362,783.45x = 2,043,683.10 × 688,640.70
  4. Step 4: Simplify right side
    1,362,783.45x = 1,407,363,360,562.17
  5. Step 5: Solve for x
    x = 1,407,363,360,562.17/1,362,783.45
  6. Step 6: Final answer
    x = 1,032,712.40

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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.