Home / 1,230,577.38-1,698,200.64-686,736.18

Finding the Fourth Proportional to 1,230,577.38, 1,698,200.64 and 686,736.18

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Solution

The fourth proportional to 1,230,577.38, 1,698,200.64 and 686,736.18 is: 947,698.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,577.38 : 1,698,200.64 = 686,736.18 : x
  2. Step 2: Convert to fraction form
    1,230,577.38/1,698,200.64 = 686,736.18/x
  3. Step 3: Cross multiply
    1,230,577.38x = 1,698,200.64 × 686,736.18
  4. Step 4: Simplify right side
    1,230,577.38x = 1,166,215,820,387.16
  5. Step 5: Solve for x
    x = 1,166,215,820,387.16/1,230,577.38
  6. Step 6: Final answer
    x = 947,698.08

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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.