Home / 688,004.55-1,032,006.83-214,628.40

Finding the Fourth Proportional to 688,004.55, 1,032,006.83 and 214,628.40

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Solution

The fourth proportional to 688,004.55, 1,032,006.83 and 214,628.40 is: 321,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,004.55 : 1,032,006.83 = 214,628.40 : x
  2. Step 2: Convert to fraction form
    688,004.55/1,032,006.83 = 214,628.40/x
  3. Step 3: Cross multiply
    688,004.55x = 1,032,006.83 × 214,628.40
  4. Step 4: Simplify right side
    688,004.55x = 221,497,973,638.83
  5. Step 5: Solve for x
    x = 221,497,973,638.83/688,004.55
  6. Step 6: Final answer
    x = 321,942.60

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1.5x scale

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.