Home / 987,277.69-1,480,623.09-418,650.40

Finding the Fourth Proportional to 987,277.69, 1,480,623.09 and 418,650.40

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Solution

The fourth proportional to 987,277.69, 1,480,623.09 and 418,650.40 is: 627,851.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,277.69 : 1,480,623.09 = 418,650.40 : x
  2. Step 2: Convert to fraction form
    987,277.69/1,480,623.09 = 418,650.40/x
  3. Step 3: Cross multiply
    987,277.69x = 1,480,623.09 × 418,650.40
  4. Step 4: Simplify right side
    987,277.69x = 619,863,448,877.74
  5. Step 5: Solve for x
    x = 619,863,448,877.74/987,277.69
  6. Step 6: Final answer
    x = 627,851.17

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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.