Home / 753,910.80-1,130,477.40-280,352.40

Finding the Fourth Proportional to 753,910.80, 1,130,477.40 and 280,352.40

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Solution

The fourth proportional to 753,910.80, 1,130,477.40 and 280,352.40 is: 420,384.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,910.80 : 1,130,477.40 = 280,352.40 : x
  2. Step 2: Convert to fraction form
    753,910.80/1,130,477.40 = 280,352.40/x
  3. Step 3: Cross multiply
    753,910.80x = 1,130,477.40 × 280,352.40
  4. Step 4: Simplify right side
    753,910.80x = 316,932,052,235.76
  5. Step 5: Solve for x
    x = 316,932,052,235.76/753,910.80
  6. Step 6: Final answer
    x = 420,384.02

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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.