Home / 938,750.40-1,295,472.96-509,029.20

Finding the Fourth Proportional to 938,750.40, 1,295,472.96 and 509,029.20

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Solution

The fourth proportional to 938,750.40, 1,295,472.96 and 509,029.20 is: 702,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,750.40 : 1,295,472.96 = 509,029.20 : x
  2. Step 2: Convert to fraction form
    938,750.40/1,295,472.96 = 509,029.20/x
  3. Step 3: Cross multiply
    938,750.40x = 1,295,472.96 × 509,029.20
  4. Step 4: Simplify right side
    938,750.40x = 659,433,564,450.43
  5. Step 5: Solve for x
    x = 659,433,564,450.43/938,750.40
  6. Step 6: Final answer
    x = 702,458.89

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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.