Home / 504,971.64-696,875.43-278,631.72

Finding the Fourth Proportional to 504,971.64, 696,875.43 and 278,631.72

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Solution

The fourth proportional to 504,971.64, 696,875.43 and 278,631.72 is: 384,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,971.64 : 696,875.43 = 278,631.72 : x
  2. Step 2: Convert to fraction form
    504,971.64/696,875.43 = 278,631.72/x
  3. Step 3: Cross multiply
    504,971.64x = 696,875.43 × 278,631.72
  4. Step 4: Simplify right side
    504,971.64x = 194,171,599,686.64
  5. Step 5: Solve for x
    x = 194,171,599,686.64/504,971.64
  6. Step 6: Final answer
    x = 384,519.81

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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.