Home / 674,317.40-1,011,973.84-319,330.85

Finding the Fourth Proportional to 674,317.40, 1,011,973.84 and 319,330.85

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Solution

The fourth proportional to 674,317.40, 1,011,973.84 and 319,330.85 is: 479,231.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,317.40 : 1,011,973.84 = 319,330.85 : x
  2. Step 2: Convert to fraction form
    674,317.40/1,011,973.84 = 319,330.85/x
  3. Step 3: Cross multiply
    674,317.40x = 1,011,973.84 × 319,330.85
  4. Step 4: Simplify right side
    674,317.40x = 323,154,460,646.77
  5. Step 5: Solve for x
    x = 323,154,460,646.77/674,317.40
  6. Step 6: Final answer
    x = 479,231.98

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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.