Home / 993,521.46-1,490,388.30-424,961.40

Finding the Fourth Proportional to 993,521.46, 1,490,388.30 and 424,961.40

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Solution

The fourth proportional to 993,521.46, 1,490,388.30 and 424,961.40 is: 637,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,521.46 : 1,490,388.30 = 424,961.40 : x
  2. Step 2: Convert to fraction form
    993,521.46/1,490,388.30 = 424,961.40/x
  3. Step 3: Cross multiply
    993,521.46x = 1,490,388.30 × 424,961.40
  4. Step 4: Simplify right side
    993,521.46x = 633,357,498,511.62
  5. Step 5: Solve for x
    x = 633,357,498,511.62/993,521.46
  6. Step 6: Final answer
    x = 637,487.49

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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.