Home / 987,167.40-1,480,313.70-454,851.60

Finding the Fourth Proportional to 987,167.40, 1,480,313.70 and 454,851.60

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Solution

The fourth proportional to 987,167.40, 1,480,313.70 and 454,851.60 is: 682,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,167.40 : 1,480,313.70 = 454,851.60 : x
  2. Step 2: Convert to fraction form
    987,167.40/1,480,313.70 = 454,851.60/x
  3. Step 3: Cross multiply
    987,167.40x = 1,480,313.70 × 454,851.60
  4. Step 4: Simplify right side
    987,167.40x = 673,323,054,946.92
  5. Step 5: Solve for x
    x = 673,323,054,946.92/987,167.40
  6. Step 6: Final answer
    x = 682,075.86

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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.