Home / 778,720.48-1,168,090.08-305,628.64

Finding the Fourth Proportional to 778,720.48, 1,168,090.08 and 305,628.64

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Solution

The fourth proportional to 778,720.48, 1,168,090.08 and 305,628.64 is: 458,446.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,720.48 : 1,168,090.08 = 305,628.64 : x
  2. Step 2: Convert to fraction form
    778,720.48/1,168,090.08 = 305,628.64/x
  3. Step 3: Cross multiply
    778,720.48x = 1,168,090.08 × 305,628.64
  4. Step 4: Simplify right side
    778,720.48x = 357,001,782,547.89
  5. Step 5: Solve for x
    x = 357,001,782,547.89/778,720.48
  6. Step 6: Final answer
    x = 458,446.63

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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.