Home / 1,038,657.94-1,558,188.90-398,914.88

Finding the Fourth Proportional to 1,038,657.94, 1,558,188.90 and 398,914.88

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Solution

The fourth proportional to 1,038,657.94, 1,558,188.90 and 398,914.88 is: 598,449.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,657.94 : 1,558,188.90 = 398,914.88 : x
  2. Step 2: Convert to fraction form
    1,038,657.94/1,558,188.90 = 398,914.88/x
  3. Step 3: Cross multiply
    1,038,657.94x = 1,558,188.90 × 398,914.88
  4. Step 4: Simplify right side
    1,038,657.94x = 621,584,730,269.89
  5. Step 5: Solve for x
    x = 621,584,730,269.89/1,038,657.94
  6. Step 6: Final answer
    x = 598,449.89

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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.