Home / 906,321.40-1,359,438.90-307,223.80

Finding the Fourth Proportional to 906,321.40, 1,359,438.90 and 307,223.80

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Solution

The fourth proportional to 906,321.40, 1,359,438.90 and 307,223.80 is: 460,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,321.40 : 1,359,438.90 = 307,223.80 : x
  2. Step 2: Convert to fraction form
    906,321.40/1,359,438.90 = 307,223.80/x
  3. Step 3: Cross multiply
    906,321.40x = 1,359,438.90 × 307,223.80
  4. Step 4: Simplify right side
    906,321.40x = 417,651,984,725.82
  5. Step 5: Solve for x
    x = 417,651,984,725.82/906,321.40
  6. Step 6: Final answer
    x = 460,821.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.