Home / 679,130.46-1,018,683.68-274,312.71

Finding the Fourth Proportional to 679,130.46, 1,018,683.68 and 274,312.71

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Solution

The fourth proportional to 679,130.46, 1,018,683.68 and 274,312.71 is: 411,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,130.46 : 1,018,683.68 = 274,312.71 : x
  2. Step 2: Convert to fraction form
    679,130.46/1,018,683.68 = 274,312.71/x
  3. Step 3: Cross multiply
    679,130.46x = 1,018,683.68 × 274,312.71
  4. Step 4: Simplify right side
    679,130.46x = 279,437,879,522.01
  5. Step 5: Solve for x
    x = 279,437,879,522.01/679,130.46
  6. Step 6: Final answer
    x = 411,464.21

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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.