Home / 878,429.16-1,212,232.90-476,021.16

Finding the Fourth Proportional to 878,429.16, 1,212,232.90 and 476,021.16

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Solution

The fourth proportional to 878,429.16, 1,212,232.90 and 476,021.16 is: 656,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,429.16 : 1,212,232.90 = 476,021.16 : x
  2. Step 2: Convert to fraction form
    878,429.16/1,212,232.90 = 476,021.16/x
  3. Step 3: Cross multiply
    878,429.16x = 1,212,232.90 × 476,021.16
  4. Step 4: Simplify right side
    878,429.16x = 577,048,511,248.16
  5. Step 5: Solve for x
    x = 577,048,511,248.16/878,429.16
  6. Step 6: Final answer
    x = 656,909.56

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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.