Home / 987,669.60-1,480,360.78-454,070.76

Finding the Fourth Proportional to 987,669.60, 1,480,360.78 and 454,070.76

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Solution

The fourth proportional to 987,669.60, 1,480,360.78 and 454,070.76 is: 680,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,669.60 : 1,480,360.78 = 454,070.76 : x
  2. Step 2: Convert to fraction form
    987,669.60/1,480,360.78 = 454,070.76/x
  3. Step 3: Cross multiply
    987,669.60x = 1,480,360.78 × 454,070.76
  4. Step 4: Simplify right side
    987,669.60x = 672,188,544,448.79
  5. Step 5: Solve for x
    x = 672,188,544,448.79/987,669.60
  6. Step 6: Final answer
    x = 680,580.37

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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.