Home / 743,530.65-1,115,355.07-317,070.11

Finding the Fourth Proportional to 743,530.65, 1,115,355.07 and 317,070.11

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Solution

The fourth proportional to 743,530.65, 1,115,355.07 and 317,070.11 is: 475,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,530.65 : 1,115,355.07 = 317,070.11 : x
  2. Step 2: Convert to fraction form
    743,530.65/1,115,355.07 = 317,070.11/x
  3. Step 3: Cross multiply
    743,530.65x = 1,115,355.07 × 317,070.11
  4. Step 4: Simplify right side
    743,530.65x = 353,645,756,135.16
  5. Step 5: Solve for x
    x = 353,645,756,135.16/743,530.65
  6. Step 6: Final answer
    x = 475,630.37

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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.