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Finding the Fourth Proportional to 547,340.40, 821,010.60 and 448,925.40

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Solution

The fourth proportional to 547,340.40, 821,010.60 and 448,925.40 is: 673,388.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,340.40 : 821,010.60 = 448,925.40 : x
  2. Step 2: Convert to fraction form
    547,340.40/821,010.60 = 448,925.40/x
  3. Step 3: Cross multiply
    547,340.40x = 821,010.60 × 448,925.40
  4. Step 4: Simplify right side
    547,340.40x = 368,572,512,009.24
  5. Step 5: Solve for x
    x = 368,572,512,009.24/547,340.40
  6. Step 6: Final answer
    x = 673,388.10

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1.5x scale

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.