Home / 674,319.86-1,011,977.49-319,333.22

Finding the Fourth Proportional to 674,319.86, 1,011,977.49 and 319,333.22

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Solution

The fourth proportional to 674,319.86, 1,011,977.49 and 319,333.22 is: 479,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,319.86 : 1,011,977.49 = 319,333.22 : x
  2. Step 2: Convert to fraction form
    674,319.86/1,011,977.49 = 319,333.22/x
  3. Step 3: Cross multiply
    674,319.86x = 1,011,977.49 × 319,333.22
  4. Step 4: Simplify right side
    674,319.86x = 323,158,030,449.22
  5. Step 5: Solve for x
    x = 323,158,030,449.22/674,319.86
  6. Step 6: Final answer
    x = 479,235.52

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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.