Home / 906,138.50-1,250,503.24-498,271.36

Finding the Fourth Proportional to 906,138.50, 1,250,503.24 and 498,271.36

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Solution

The fourth proportional to 906,138.50, 1,250,503.24 and 498,271.36 is: 687,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,138.50 : 1,250,503.24 = 498,271.36 : x
  2. Step 2: Convert to fraction form
    906,138.50/1,250,503.24 = 498,271.36/x
  3. Step 3: Cross multiply
    906,138.50x = 1,250,503.24 × 498,271.36
  4. Step 4: Simplify right side
    906,138.50x = 623,089,950,079.21
  5. Step 5: Solve for x
    x = 623,089,950,079.21/906,138.50
  6. Step 6: Final answer
    x = 687,632.13

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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.