Home / 977,421-1,465,671.39-378,662.52

Finding the Fourth Proportional to 977,421, 1,465,671.39 and 378,662.52

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Solution

The fourth proportional to 977,421, 1,465,671.39 and 378,662.52 is: 567,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,421 : 1,465,671.39 = 378,662.52 : x
  2. Step 2: Convert to fraction form
    977,421/1,465,671.39 = 378,662.52/x
  3. Step 3: Cross multiply
    977,421x = 1,465,671.39 × 378,662.52
  4. Step 4: Simplify right side
    977,421x = 554,994,822,029.30
  5. Step 5: Solve for x
    x = 554,994,822,029.30/977,421
  6. Step 6: Final answer
    x = 567,815.53

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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.