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Finding the Fourth Proportional to 556,132.80, 767,467.20 and 301,488

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Solution

The fourth proportional to 556,132.80, 767,467.20 and 301,488 is: 416,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,132.80 : 767,467.20 = 301,488 : x
  2. Step 2: Convert to fraction form
    556,132.80/767,467.20 = 301,488/x
  3. Step 3: Cross multiply
    556,132.80x = 767,467.20 × 301,488
  4. Step 4: Simplify right side
    556,132.80x = 231,382,151,193.60
  5. Step 5: Solve for x
    x = 231,382,151,193.60/556,132.80
  6. Step 6: Final answer
    x = 416,055.57

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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.