Home / 689,302.55-951,220.89-383,378.02

Finding the Fourth Proportional to 689,302.55, 951,220.89 and 383,378.02

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Solution

The fourth proportional to 689,302.55, 951,220.89 and 383,378.02 is: 529,052.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,302.55 : 951,220.89 = 383,378.02 : x
  2. Step 2: Convert to fraction form
    689,302.55/951,220.89 = 383,378.02/x
  3. Step 3: Cross multiply
    689,302.55x = 951,220.89 × 383,378.02
  4. Step 4: Simplify right side
    689,302.55x = 364,677,179,012.79
  5. Step 5: Solve for x
    x = 364,677,179,012.79/689,302.55
  6. Step 6: Final answer
    x = 529,052.41

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Double scale
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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.