Home / 977,420-1,465,669.89-378,661.52

Finding the Fourth Proportional to 977,420, 1,465,669.89 and 378,661.52

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Solution

The fourth proportional to 977,420, 1,465,669.89 and 378,661.52 is: 567,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,420 : 1,465,669.89 = 378,661.52 : x
  2. Step 2: Convert to fraction form
    977,420/1,465,669.89 = 378,661.52/x
  3. Step 3: Cross multiply
    977,420x = 1,465,669.89 × 378,661.52
  4. Step 4: Simplify right side
    977,420x = 554,992,788,365.63
  5. Step 5: Solve for x
    x = 554,992,788,365.63/977,420
  6. Step 6: Final answer
    x = 567,814.03

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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.