Home / 979,939.32-1,352,424.60-572,141.40

Finding the Fourth Proportional to 979,939.32, 1,352,424.60 and 572,141.40

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Solution

The fourth proportional to 979,939.32, 1,352,424.60 and 572,141.40 is: 789,618.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,939.32 : 1,352,424.60 = 572,141.40 : x
  2. Step 2: Convert to fraction form
    979,939.32/1,352,424.60 = 572,141.40/x
  3. Step 3: Cross multiply
    979,939.32x = 1,352,424.60 × 572,141.40
  4. Step 4: Simplify right side
    979,939.32x = 773,778,104,038.44
  5. Step 5: Solve for x
    x = 773,778,104,038.44/979,939.32
  6. Step 6: Final answer
    x = 789,618.39

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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.