Home / 1,038,674.47-1,558,213.70-398,931.41

Finding the Fourth Proportional to 1,038,674.47, 1,558,213.70 and 398,931.41

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Solution

The fourth proportional to 1,038,674.47, 1,558,213.70 and 398,931.41 is: 598,474.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,674.47 : 1,558,213.70 = 398,931.41 : x
  2. Step 2: Convert to fraction form
    1,038,674.47/1,558,213.70 = 398,931.41/x
  3. Step 3: Cross multiply
    1,038,674.47x = 1,558,213.70 × 398,931.41
  4. Step 4: Simplify right side
    1,038,674.47x = 621,620,388,422.32
  5. Step 5: Solve for x
    x = 621,620,388,422.32/1,038,674.47
  6. Step 6: Final answer
    x = 598,474.70

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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.