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Finding the Fourth Proportional to 627,080.40, 939,929.40 and 346,798.80

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Solution

The fourth proportional to 627,080.40, 939,929.40 and 346,798.80 is: 519,815.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,080.40 : 939,929.40 = 346,798.80 : x
  2. Step 2: Convert to fraction form
    627,080.40/939,929.40 = 346,798.80/x
  3. Step 3: Cross multiply
    627,080.40x = 939,929.40 × 346,798.80
  4. Step 4: Simplify right side
    627,080.40x = 325,966,388,004.72
  5. Step 5: Solve for x
    x = 325,966,388,004.72/627,080.40
  6. Step 6: Final answer
    x = 519,815.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.