Home / 1,424,015.34-1,965,159.62-779,421.69

Finding the Fourth Proportional to 1,424,015.34, 1,965,159.62 and 779,421.69

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Solution

The fourth proportional to 1,424,015.34, 1,965,159.62 and 779,421.69 is: 1,075,612.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,015.34 : 1,965,159.62 = 779,421.69 : x
  2. Step 2: Convert to fraction form
    1,424,015.34/1,965,159.62 = 779,421.69/x
  3. Step 3: Cross multiply
    1,424,015.34x = 1,965,159.62 × 779,421.69
  4. Step 4: Simplify right side
    1,424,015.34x = 1,531,688,033,358.00
  5. Step 5: Solve for x
    x = 1,531,688,033,358.00/1,424,015.34
  6. Step 6: Final answer
    x = 1,075,612.03

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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.