Home / 1,070,678.34-1,477,659.56-640,958.36

Finding the Fourth Proportional to 1,070,678.34, 1,477,659.56 and 640,958.36

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Solution

The fourth proportional to 1,070,678.34, 1,477,659.56 and 640,958.36 is: 884,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,678.34 : 1,477,659.56 = 640,958.36 : x
  2. Step 2: Convert to fraction form
    1,070,678.34/1,477,659.56 = 640,958.36/x
  3. Step 3: Cross multiply
    1,070,678.34x = 1,477,659.56 × 640,958.36
  4. Step 4: Simplify right side
    1,070,678.34x = 947,118,237,622.83
  5. Step 5: Solve for x
    x = 947,118,237,622.83/1,070,678.34
  6. Step 6: Final answer
    x = 884,596.43

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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.