Home / 1,040,400.90-1,559,564.55-478,455.30

Finding the Fourth Proportional to 1,040,400.90, 1,559,564.55 and 478,455.30

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Solution

The fourth proportional to 1,040,400.90, 1,559,564.55 and 478,455.30 is: 717,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,400.90 : 1,559,564.55 = 478,455.30 : x
  2. Step 2: Convert to fraction form
    1,040,400.90/1,559,564.55 = 478,455.30/x
  3. Step 3: Cross multiply
    1,040,400.90x = 1,559,564.55 × 478,455.30
  4. Step 4: Simplify right side
    1,040,400.90x = 746,181,924,639.62
  5. Step 5: Solve for x
    x = 746,181,924,639.62/1,040,400.90
  6. Step 6: Final answer
    x = 717,206.15

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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.