Home / 689,424.06-951,094.26-402,815.28

Finding the Fourth Proportional to 689,424.06, 951,094.26 and 402,815.28

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Solution

The fourth proportional to 689,424.06, 951,094.26 and 402,815.28 is: 555,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,424.06 : 951,094.26 = 402,815.28 : x
  2. Step 2: Convert to fraction form
    689,424.06/951,094.26 = 402,815.28/x
  3. Step 3: Cross multiply
    689,424.06x = 951,094.26 × 402,815.28
  4. Step 4: Simplify right side
    689,424.06x = 383,115,300,648.29
  5. Step 5: Solve for x
    x = 383,115,300,648.29/689,424.06
  6. Step 6: Final answer
    x = 555,703.41

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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.