Home / 735,320.40-1,102,980.60-398,522.40

Finding the Fourth Proportional to 735,320.40, 1,102,980.60 and 398,522.40

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Solution

The fourth proportional to 735,320.40, 1,102,980.60 and 398,522.40 is: 597,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,320.40 : 1,102,980.60 = 398,522.40 : x
  2. Step 2: Convert to fraction form
    735,320.40/1,102,980.60 = 398,522.40/x
  3. Step 3: Cross multiply
    735,320.40x = 1,102,980.60 × 398,522.40
  4. Step 4: Simplify right side
    735,320.40x = 439,562,475,865.44
  5. Step 5: Solve for x
    x = 439,562,475,865.44/735,320.40
  6. Step 6: Final answer
    x = 597,783.60

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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.