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Finding the Fourth Proportional to 710,232.64, 980,114.52 and 387,942.64

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Solution

The fourth proportional to 710,232.64, 980,114.52 and 387,942.64 is: 535,357.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,232.64 : 980,114.52 = 387,942.64 : x
  2. Step 2: Convert to fraction form
    710,232.64/980,114.52 = 387,942.64/x
  3. Step 3: Cross multiply
    710,232.64x = 980,114.52 × 387,942.64
  4. Step 4: Simplify right side
    710,232.64x = 380,228,214,391.13
  5. Step 5: Solve for x
    x = 380,228,214,391.13/710,232.64
  6. Step 6: Final answer
    x = 535,357.28

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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.