Home / 987,219.40-1,480,829.10-488,518.60

Finding the Fourth Proportional to 987,219.40, 1,480,829.10 and 488,518.60

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Solution

The fourth proportional to 987,219.40, 1,480,829.10 and 488,518.60 is: 732,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,219.40 : 1,480,829.10 = 488,518.60 : x
  2. Step 2: Convert to fraction form
    987,219.40/1,480,829.10 = 488,518.60/x
  3. Step 3: Cross multiply
    987,219.40x = 1,480,829.10 × 488,518.60
  4. Step 4: Simplify right side
    987,219.40x = 723,412,558,771.26
  5. Step 5: Solve for x
    x = 723,412,558,771.26/987,219.40
  6. Step 6: Final answer
    x = 732,777.90

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1.5x scale

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.