Home / 876,611.34-1,209,742.52-484,143.26

Finding the Fourth Proportional to 876,611.34, 1,209,742.52 and 484,143.26

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Solution

The fourth proportional to 876,611.34, 1,209,742.52 and 484,143.26 is: 668,128.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,611.34 : 1,209,742.52 = 484,143.26 : x
  2. Step 2: Convert to fraction form
    876,611.34/1,209,742.52 = 484,143.26/x
  3. Step 3: Cross multiply
    876,611.34x = 1,209,742.52 × 484,143.26
  4. Step 4: Simplify right side
    876,611.34x = 585,688,678,923.99
  5. Step 5: Solve for x
    x = 585,688,678,923.99/876,611.34
  6. Step 6: Final answer
    x = 668,128.11

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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.