Home / 1,120,973.32-1,681,412.94-521,728.36

Finding the Fourth Proportional to 1,120,973.32, 1,681,412.94 and 521,728.36

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Solution

The fourth proportional to 1,120,973.32, 1,681,412.94 and 521,728.36 is: 782,570.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,973.32 : 1,681,412.94 = 521,728.36 : x
  2. Step 2: Convert to fraction form
    1,120,973.32/1,681,412.94 = 521,728.36/x
  3. Step 3: Cross multiply
    1,120,973.32x = 1,681,412.94 × 521,728.36
  4. Step 4: Simplify right side
    1,120,973.32x = 877,240,815,668.98
  5. Step 5: Solve for x
    x = 877,240,815,668.98/1,120,973.32
  6. Step 6: Final answer
    x = 782,570.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.