Home / 765,191.16-1,056,054.78-438,621.03

Finding the Fourth Proportional to 765,191.16, 1,056,054.78 and 438,621.03

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Solution

The fourth proportional to 765,191.16, 1,056,054.78 and 438,621.03 is: 605,349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,191.16 : 1,056,054.78 = 438,621.03 : x
  2. Step 2: Convert to fraction form
    765,191.16/1,056,054.78 = 438,621.03/x
  3. Step 3: Cross multiply
    765,191.16x = 1,056,054.78 × 438,621.03
  4. Step 4: Simplify right side
    765,191.16x = 463,207,835,340.02
  5. Step 5: Solve for x
    x = 463,207,835,340.02/765,191.16
  6. Step 6: Final answer
    x = 605,349.17

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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.