Home / 689,189.10-950,941.58-402,653.82

Finding the Fourth Proportional to 689,189.10, 950,941.58 and 402,653.82

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Solution

The fourth proportional to 689,189.10, 950,941.58 and 402,653.82 is: 555,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,189.10 : 950,941.58 = 402,653.82 : x
  2. Step 2: Convert to fraction form
    689,189.10/950,941.58 = 402,653.82/x
  3. Step 3: Cross multiply
    689,189.10x = 950,941.58 × 402,653.82
  4. Step 4: Simplify right side
    689,189.10x = 382,900,259,783.84
  5. Step 5: Solve for x
    x = 382,900,259,783.84/689,189.10
  6. Step 6: Final answer
    x = 555,580.84

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1.5x scale

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.