Home / 903,900.21-1,247,378.85-496,008.88

Finding the Fourth Proportional to 903,900.21, 1,247,378.85 and 496,008.88

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Solution

The fourth proportional to 903,900.21, 1,247,378.85 and 496,008.88 is: 684,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,900.21 : 1,247,378.85 = 496,008.88 : x
  2. Step 2: Convert to fraction form
    903,900.21/1,247,378.85 = 496,008.88/x
  3. Step 3: Cross multiply
    903,900.21x = 1,247,378.85 × 496,008.88
  4. Step 4: Simplify right side
    903,900.21x = 618,710,986,324.19
  5. Step 5: Solve for x
    x = 618,710,986,324.19/903,900.21
  6. Step 6: Final answer
    x = 684,490.37

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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.