Home / 784,624.86-1,082,503.80-512,849.70

Finding the Fourth Proportional to 784,624.86, 1,082,503.80 and 512,849.70

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Solution

The fourth proportional to 784,624.86, 1,082,503.80 and 512,849.70 is: 707,550.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,624.86 : 1,082,503.80 = 512,849.70 : x
  2. Step 2: Convert to fraction form
    784,624.86/1,082,503.80 = 512,849.70/x
  3. Step 3: Cross multiply
    784,624.86x = 1,082,503.80 × 512,849.70
  4. Step 4: Simplify right side
    784,624.86x = 555,161,749,078.86
  5. Step 5: Solve for x
    x = 555,161,749,078.86/784,624.86
  6. Step 6: Final answer
    x = 707,550.55

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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.