Home / 887,871.63-1,225,325.39-500,721.69

Finding the Fourth Proportional to 887,871.63, 1,225,325.39 and 500,721.69

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Solution

The fourth proportional to 887,871.63, 1,225,325.39 and 500,721.69 is: 691,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,871.63 : 1,225,325.39 = 500,721.69 : x
  2. Step 2: Convert to fraction form
    887,871.63/1,225,325.39 = 500,721.69/x
  3. Step 3: Cross multiply
    887,871.63x = 1,225,325.39 × 500,721.69
  4. Step 4: Simplify right side
    887,871.63x = 613,546,997,577.10
  5. Step 5: Solve for x
    x = 613,546,997,577.10/887,871.63
  6. Step 6: Final answer
    x = 691,031.20

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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.