Home / 821,785.14-1,134,176.04-472,918.32

Finding the Fourth Proportional to 821,785.14, 1,134,176.04 and 472,918.32

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Solution

The fourth proportional to 821,785.14, 1,134,176.04 and 472,918.32 is: 652,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,785.14 : 1,134,176.04 = 472,918.32 : x
  2. Step 2: Convert to fraction form
    821,785.14/1,134,176.04 = 472,918.32/x
  3. Step 3: Cross multiply
    821,785.14x = 1,134,176.04 × 472,918.32
  4. Step 4: Simplify right side
    821,785.14x = 536,372,627,421.05
  5. Step 5: Solve for x
    x = 536,372,627,421.05/821,785.14
  6. Step 6: Final answer
    x = 652,692.05

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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.