Home / 993,750.42-1,490,311.86-319,681.44

Finding the Fourth Proportional to 993,750.42, 1,490,311.86 and 319,681.44

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Solution

The fourth proportional to 993,750.42, 1,490,311.86 and 319,681.44 is: 479,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,750.42 : 1,490,311.86 = 319,681.44 : x
  2. Step 2: Convert to fraction form
    993,750.42/1,490,311.86 = 319,681.44/x
  3. Step 3: Cross multiply
    993,750.42x = 1,490,311.86 × 319,681.44
  4. Step 4: Simplify right side
    993,750.42x = 476,425,041,453.88
  5. Step 5: Solve for x
    x = 476,425,041,453.88/993,750.42
  6. Step 6: Final answer
    x = 479,421.22

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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.