Home / 1,070,775.78-1,477,716.80-640,972.86

Finding the Fourth Proportional to 1,070,775.78, 1,477,716.80 and 640,972.86

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Solution

The fourth proportional to 1,070,775.78, 1,477,716.80 and 640,972.86 is: 884,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,775.78 : 1,477,716.80 = 640,972.86 : x
  2. Step 2: Convert to fraction form
    1,070,775.78/1,477,716.80 = 640,972.86/x
  3. Step 3: Cross multiply
    1,070,775.78x = 1,477,716.80 × 640,972.86
  4. Step 4: Simplify right side
    1,070,775.78x = 947,176,360,361.18
  5. Step 5: Solve for x
    x = 947,176,360,361.18/1,070,775.78
  6. Step 6: Final answer
    x = 884,570.21

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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.