Home / 553,329.36-763,368.48-408,481.92

Finding the Fourth Proportional to 553,329.36, 763,368.48 and 408,481.92

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Solution

The fourth proportional to 553,329.36, 763,368.48 and 408,481.92 is: 563,538.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,329.36 : 763,368.48 = 408,481.92 : x
  2. Step 2: Convert to fraction form
    553,329.36/763,368.48 = 408,481.92/x
  3. Step 3: Cross multiply
    553,329.36x = 763,368.48 × 408,481.92
  4. Step 4: Simplify right side
    553,329.36x = 311,822,222,377.88
  5. Step 5: Solve for x
    x = 311,822,222,377.88/553,329.36
  6. Step 6: Final answer
    x = 563,538.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.