Home / 930,079.20-1,283,409.90-522,225.88

Finding the Fourth Proportional to 930,079.20, 1,283,409.90 and 522,225.88

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Solution

The fourth proportional to 930,079.20, 1,283,409.90 and 522,225.88 is: 720,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,079.20 : 1,283,409.90 = 522,225.88 : x
  2. Step 2: Convert to fraction form
    930,079.20/1,283,409.90 = 522,225.88/x
  3. Step 3: Cross multiply
    930,079.20x = 1,283,409.90 × 522,225.88
  4. Step 4: Simplify right side
    930,079.20x = 670,229,864,428.21
  5. Step 5: Solve for x
    x = 670,229,864,428.21/930,079.20
  6. Step 6: Final answer
    x = 720,615.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.