Home / 1,345,332.63-1,855,509.28-861,943.06

Finding the Fourth Proportional to 1,345,332.63, 1,855,509.28 and 861,943.06

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Solution

The fourth proportional to 1,345,332.63, 1,855,509.28 and 861,943.06 is: 1,188,808.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,332.63 : 1,855,509.28 = 861,943.06 : x
  2. Step 2: Convert to fraction form
    1,345,332.63/1,855,509.28 = 861,943.06/x
  3. Step 3: Cross multiply
    1,345,332.63x = 1,855,509.28 × 861,943.06
  4. Step 4: Simplify right side
    1,345,332.63x = 1,599,343,346,661.60
  5. Step 5: Solve for x
    x = 1,599,343,346,661.60/1,345,332.63
  6. Step 6: Final answer
    x = 1,188,808.86

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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.