Home / 739,956.34-1,021,140.65-400,424.59

Finding the Fourth Proportional to 739,956.34, 1,021,140.65 and 400,424.59

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Solution

The fourth proportional to 739,956.34, 1,021,140.65 and 400,424.59 is: 552,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,956.34 : 1,021,140.65 = 400,424.59 : x
  2. Step 2: Convert to fraction form
    739,956.34/1,021,140.65 = 400,424.59/x
  3. Step 3: Cross multiply
    739,956.34x = 1,021,140.65 × 400,424.59
  4. Step 4: Simplify right side
    739,956.34x = 408,889,826,108.58
  5. Step 5: Solve for x
    x = 408,889,826,108.58/739,956.34
  6. Step 6: Final answer
    x = 552,586.42

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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.