Home / 740,563.20-1,110,079.35-402,890.40

Finding the Fourth Proportional to 740,563.20, 1,110,079.35 and 402,890.40

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Solution

The fourth proportional to 740,563.20, 1,110,079.35 and 402,890.40 is: 603,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,563.20 : 1,110,079.35 = 402,890.40 : x
  2. Step 2: Convert to fraction form
    740,563.20/1,110,079.35 = 402,890.40/x
  3. Step 3: Cross multiply
    740,563.20x = 1,110,079.35 × 402,890.40
  4. Step 4: Simplify right side
    740,563.20x = 447,240,313,353.24
  5. Step 5: Solve for x
    x = 447,240,313,353.24/740,563.20
  6. Step 6: Final answer
    x = 603,919.17

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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.