Home / 1,155,890.24-1,595,104.65-639,643.80

Finding the Fourth Proportional to 1,155,890.24, 1,595,104.65 and 639,643.80

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Solution

The fourth proportional to 1,155,890.24, 1,595,104.65 and 639,643.80 is: 882,695.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,890.24 : 1,595,104.65 = 639,643.80 : x
  2. Step 2: Convert to fraction form
    1,155,890.24/1,595,104.65 = 639,643.80/x
  3. Step 3: Cross multiply
    1,155,890.24x = 1,595,104.65 × 639,643.80
  4. Step 4: Simplify right side
    1,155,890.24x = 1,020,298,805,705.31
  5. Step 5: Solve for x
    x = 1,020,298,805,705.31/1,155,890.24
  6. Step 6: Final answer
    x = 882,695.23

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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.