Home / 977,422.11-1,465,673.09-378,663.63

Finding the Fourth Proportional to 977,422.11, 1,465,673.09 and 378,663.63

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Solution

The fourth proportional to 977,422.11, 1,465,673.09 and 378,663.63 is: 567,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,422.11 : 1,465,673.09 = 378,663.63 : x
  2. Step 2: Convert to fraction form
    977,422.11/1,465,673.09 = 378,663.63/x
  3. Step 3: Cross multiply
    977,422.11x = 1,465,673.09 × 378,663.63
  4. Step 4: Simplify right side
    977,422.11x = 554,997,090,759.40
  5. Step 5: Solve for x
    x = 554,997,090,759.40/977,422.11
  6. Step 6: Final answer
    x = 567,817.21

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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.