Home / 1,038,674.32-1,558,213.47-398,931.25

Finding the Fourth Proportional to 1,038,674.32, 1,558,213.47 and 398,931.25

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Solution

The fourth proportional to 1,038,674.32, 1,558,213.47 and 398,931.25 is: 598,474.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,674.32 : 1,558,213.47 = 398,931.25 : x
  2. Step 2: Convert to fraction form
    1,038,674.32/1,558,213.47 = 398,931.25/x
  3. Step 3: Cross multiply
    1,038,674.32x = 1,558,213.47 × 398,931.25
  4. Step 4: Simplify right side
    1,038,674.32x = 621,620,047,353.94
  5. Step 5: Solve for x
    x = 621,620,047,353.94/1,038,674.32
  6. Step 6: Final answer
    x = 598,474.45

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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.