Home / 688,005.80-1,032,008.70-214,629.65

Finding the Fourth Proportional to 688,005.80, 1,032,008.70 and 214,629.65

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Solution

The fourth proportional to 688,005.80, 1,032,008.70 and 214,629.65 is: 321,944.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,005.80 : 1,032,008.70 = 214,629.65 : x
  2. Step 2: Convert to fraction form
    688,005.80/1,032,008.70 = 214,629.65/x
  3. Step 3: Cross multiply
    688,005.80x = 1,032,008.70 × 214,629.65
  4. Step 4: Simplify right side
    688,005.80x = 221,499,666,077.96
  5. Step 5: Solve for x
    x = 221,499,666,077.96/688,005.80
  6. Step 6: Final answer
    x = 321,944.48

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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.