Home / 878,441.28-1,212,216.48-476,024.64

Finding the Fourth Proportional to 878,441.28, 1,212,216.48 and 476,024.64

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Solution

The fourth proportional to 878,441.28, 1,212,216.48 and 476,024.64 is: 656,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,441.28 : 1,212,216.48 = 476,024.64 : x
  2. Step 2: Convert to fraction form
    878,441.28/1,212,216.48 = 476,024.64/x
  3. Step 3: Cross multiply
    878,441.28x = 1,212,216.48 × 476,024.64
  4. Step 4: Simplify right side
    878,441.28x = 577,044,913,494.07
  5. Step 5: Solve for x
    x = 577,044,913,494.07/878,441.28
  6. Step 6: Final answer
    x = 656,896.40

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Double scale
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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.