Home / 689,284.79-951,072.23-402,749.52

Finding the Fourth Proportional to 689,284.79, 951,072.23 and 402,749.52

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Solution

The fourth proportional to 689,284.79, 951,072.23 and 402,749.52 is: 555,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,284.79 : 951,072.23 = 402,749.52 : x
  2. Step 2: Convert to fraction form
    689,284.79/951,072.23 = 402,749.52/x
  3. Step 3: Cross multiply
    689,284.79x = 951,072.23 × 402,749.52
  4. Step 4: Simplify right side
    689,284.79x = 383,043,881,558.18
  5. Step 5: Solve for x
    x = 383,043,881,558.18/689,284.79
  6. Step 6: Final answer
    x = 555,712.08

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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.