Home / 890,989.75-1,337,148.88-358,515.31

Finding the Fourth Proportional to 890,989.75, 1,337,148.88 and 358,515.31

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Solution

The fourth proportional to 890,989.75, 1,337,148.88 and 358,515.31 is: 538,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,989.75 : 1,337,148.88 = 358,515.31 : x
  2. Step 2: Convert to fraction form
    890,989.75/1,337,148.88 = 358,515.31/x
  3. Step 3: Cross multiply
    890,989.75x = 1,337,148.88 × 358,515.31
  4. Step 4: Simplify right side
    890,989.75x = 479,388,337,647.32
  5. Step 5: Solve for x
    x = 479,388,337,647.32/890,989.75
  6. Step 6: Final answer
    x = 538,040.24

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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.