Home / 1,409,221.55-2,114,095.64-640,775.70

Finding the Fourth Proportional to 1,409,221.55, 2,114,095.64 and 640,775.70

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Solution

The fourth proportional to 1,409,221.55, 2,114,095.64 and 640,775.70 is: 961,283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,221.55 : 2,114,095.64 = 640,775.70 : x
  2. Step 2: Convert to fraction form
    1,409,221.55/2,114,095.64 = 640,775.70/x
  3. Step 3: Cross multiply
    1,409,221.55x = 2,114,095.64 × 640,775.70
  4. Step 4: Simplify right side
    1,409,221.55x = 1,354,661,110,384.07
  5. Step 5: Solve for x
    x = 1,354,661,110,384.07/1,409,221.55
  6. Step 6: Final answer
    x = 961,283.28

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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.