Home / 877,436.40-1,315,279.80-403,294.80

Finding the Fourth Proportional to 877,436.40, 1,315,279.80 and 403,294.80

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Solution

The fourth proportional to 877,436.40, 1,315,279.80 and 403,294.80 is: 604,540.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,436.40 : 1,315,279.80 = 403,294.80 : x
  2. Step 2: Convert to fraction form
    877,436.40/1,315,279.80 = 403,294.80/x
  3. Step 3: Cross multiply
    877,436.40x = 1,315,279.80 × 403,294.80
  4. Step 4: Simplify right side
    877,436.40x = 530,445,503,885.04
  5. Step 5: Solve for x
    x = 530,445,503,885.04/877,436.40
  6. Step 6: Final answer
    x = 604,540.12

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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.