Home / 1,128,981.70-1,558,012.41-619,730.50

Finding the Fourth Proportional to 1,128,981.70, 1,558,012.41 and 619,730.50

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Solution

The fourth proportional to 1,128,981.70, 1,558,012.41 and 619,730.50 is: 855,237.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,981.70 : 1,558,012.41 = 619,730.50 : x
  2. Step 2: Convert to fraction form
    1,128,981.70/1,558,012.41 = 619,730.50/x
  3. Step 3: Cross multiply
    1,128,981.70x = 1,558,012.41 × 619,730.50
  4. Step 4: Simplify right side
    1,128,981.70x = 965,547,809,855.51
  5. Step 5: Solve for x
    x = 965,547,809,855.51/1,128,981.70
  6. Step 6: Final answer
    x = 855,237.79

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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.