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Finding the Fourth Proportional to 543,825.36, 750,478.32 and 302,130.24

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Solution

The fourth proportional to 543,825.36, 750,478.32 and 302,130.24 is: 416,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,825.36 : 750,478.32 = 302,130.24 : x
  2. Step 2: Convert to fraction form
    543,825.36/750,478.32 = 302,130.24/x
  3. Step 3: Cross multiply
    543,825.36x = 750,478.32 × 302,130.24
  4. Step 4: Simplify right side
    543,825.36x = 226,742,194,936.40
  5. Step 5: Solve for x
    x = 226,742,194,936.40/543,825.36
  6. Step 6: Final answer
    x = 416,939.36

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1.5x scale

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.