Home / 821,775.10-1,134,162.24-472,908.32

Finding the Fourth Proportional to 821,775.10, 1,134,162.24 and 472,908.32

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Solution

The fourth proportional to 821,775.10, 1,134,162.24 and 472,908.32 is: 652,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,775.10 : 1,134,162.24 = 472,908.32 : x
  2. Step 2: Convert to fraction form
    821,775.10/1,134,162.24 = 472,908.32/x
  3. Step 3: Cross multiply
    821,775.10x = 1,134,162.24 × 472,908.32
  4. Step 4: Simplify right side
    821,775.10x = 536,354,759,525.84
  5. Step 5: Solve for x
    x = 536,354,759,525.84/821,775.10
  6. Step 6: Final answer
    x = 652,678.28

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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.