Home / 999,148.10-1,378,835.26-546,429.38

Finding the Fourth Proportional to 999,148.10, 1,378,835.26 and 546,429.38

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Solution

The fourth proportional to 999,148.10, 1,378,835.26 and 546,429.38 is: 754,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,148.10 : 1,378,835.26 = 546,429.38 : x
  2. Step 2: Convert to fraction form
    999,148.10/1,378,835.26 = 546,429.38/x
  3. Step 3: Cross multiply
    999,148.10x = 1,378,835.26 × 546,429.38
  4. Step 4: Simplify right side
    999,148.10x = 753,436,087,983.69
  5. Step 5: Solve for x
    x = 753,436,087,983.69/999,148.10
  6. Step 6: Final answer
    x = 754,078.49

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1.5x scale

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.