Home / 753,484.20-1,131,101.10-433,890.60

Finding the Fourth Proportional to 753,484.20, 1,131,101.10 and 433,890.60

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Solution

The fourth proportional to 753,484.20, 1,131,101.10 and 433,890.60 is: 651,339.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,484.20 : 1,131,101.10 = 433,890.60 : x
  2. Step 2: Convert to fraction form
    753,484.20/1,131,101.10 = 433,890.60/x
  3. Step 3: Cross multiply
    753,484.20x = 1,131,101.10 × 433,890.60
  4. Step 4: Simplify right side
    753,484.20x = 490,774,134,939.66
  5. Step 5: Solve for x
    x = 490,774,134,939.66/753,484.20
  6. Step 6: Final answer
    x = 651,339.65

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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.