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Finding the Fourth Proportional to 587,881.40, 880,509.90 and 454,328.60

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Solution

The fourth proportional to 587,881.40, 880,509.90 and 454,328.60 is: 680,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,881.40 : 880,509.90 = 454,328.60 : x
  2. Step 2: Convert to fraction form
    587,881.40/880,509.90 = 454,328.60/x
  3. Step 3: Cross multiply
    587,881.40x = 880,509.90 × 454,328.60
  4. Step 4: Simplify right side
    587,881.40x = 400,040,830,153.14
  5. Step 5: Solve for x
    x = 400,040,830,153.14/587,881.40
  6. Step 6: Final answer
    x = 680,478.80

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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.