Home / 1,040,492.80-1,558,924.80-478,374.40

Finding the Fourth Proportional to 1,040,492.80, 1,558,924.80 and 478,374.40

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Solution

The fourth proportional to 1,040,492.80, 1,558,924.80 and 478,374.40 is: 716,727.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,492.80 : 1,558,924.80 = 478,374.40 : x
  2. Step 2: Convert to fraction form
    1,040,492.80/1,558,924.80 = 478,374.40/x
  3. Step 3: Cross multiply
    1,040,492.80x = 1,558,924.80 × 478,374.40
  4. Step 4: Simplify right side
    1,040,492.80x = 745,749,715,845.12
  5. Step 5: Solve for x
    x = 745,749,715,845.12/1,040,492.80
  6. Step 6: Final answer
    x = 716,727.42

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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.