Home / 877,436.90-1,315,280.55-403,295.30

Finding the Fourth Proportional to 877,436.90, 1,315,280.55 and 403,295.30

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Solution

The fourth proportional to 877,436.90, 1,315,280.55 and 403,295.30 is: 604,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,436.90 : 1,315,280.55 = 403,295.30 : x
  2. Step 2: Convert to fraction form
    877,436.90/1,315,280.55 = 403,295.30/x
  3. Step 3: Cross multiply
    877,436.90x = 1,315,280.55 × 403,295.30
  4. Step 4: Simplify right side
    877,436.90x = 530,446,463,996.42
  5. Step 5: Solve for x
    x = 530,446,463,996.42/877,436.90
  6. Step 6: Final answer
    x = 604,540.87

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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.