Home / 903,909.21-1,247,472.19-496,089.89

Finding the Fourth Proportional to 903,909.21, 1,247,472.19 and 496,089.89

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Solution

The fourth proportional to 903,909.21, 1,247,472.19 and 496,089.89 is: 684,646.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,909.21 : 1,247,472.19 = 496,089.89 : x
  2. Step 2: Convert to fraction form
    903,909.21/1,247,472.19 = 496,089.89/x
  3. Step 3: Cross multiply
    903,909.21x = 1,247,472.19 × 496,089.89
  4. Step 4: Simplify right side
    903,909.21x = 618,858,340,575.93
  5. Step 5: Solve for x
    x = 618,858,340,575.93/903,909.21
  6. Step 6: Final answer
    x = 684,646.57

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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.