Home / 1,295,439.61-1,788,429.36-909,439.51

Finding the Fourth Proportional to 1,295,439.61, 1,788,429.36 and 909,439.51

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Solution

The fourth proportional to 1,295,439.61, 1,788,429.36 and 909,439.51 is: 1,255,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,439.61 : 1,788,429.36 = 909,439.51 : x
  2. Step 2: Convert to fraction form
    1,295,439.61/1,788,429.36 = 909,439.51/x
  3. Step 3: Cross multiply
    1,295,439.61x = 1,788,429.36 × 909,439.51
  4. Step 4: Simplify right side
    1,295,439.61x = 1,626,468,320,828.01
  5. Step 5: Solve for x
    x = 1,626,468,320,828.01/1,295,439.61
  6. Step 6: Final answer
    x = 1,255,533.88

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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.