Home / 578,002.20-867,003.30-459,029.40

Finding the Fourth Proportional to 578,002.20, 867,003.30 and 459,029.40

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Solution

The fourth proportional to 578,002.20, 867,003.30 and 459,029.40 is: 688,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,002.20 : 867,003.30 = 459,029.40 : x
  2. Step 2: Convert to fraction form
    578,002.20/867,003.30 = 459,029.40/x
  3. Step 3: Cross multiply
    578,002.20x = 867,003.30 × 459,029.40
  4. Step 4: Simplify right side
    578,002.20x = 397,980,004,597.02
  5. Step 5: Solve for x
    x = 397,980,004,597.02/578,002.20
  6. Step 6: Final answer
    x = 688,544.10

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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.