Home / 1,152,628.58-1,590,480.69-643,352.42

Finding the Fourth Proportional to 1,152,628.58, 1,590,480.69 and 643,352.42

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Solution

The fourth proportional to 1,152,628.58, 1,590,480.69 and 643,352.42 is: 887,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,628.58 : 1,590,480.69 = 643,352.42 : x
  2. Step 2: Convert to fraction form
    1,152,628.58/1,590,480.69 = 643,352.42/x
  3. Step 3: Cross multiply
    1,152,628.58x = 1,590,480.69 × 643,352.42
  4. Step 4: Simplify right side
    1,152,628.58x = 1,023,239,600,874.77
  5. Step 5: Solve for x
    x = 1,023,239,600,874.77/1,152,628.58
  6. Step 6: Final answer
    x = 887,744.43

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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.