Home / 957,019.52-1,320,688.32-521,434.88

Finding the Fourth Proportional to 957,019.52, 1,320,688.32 and 521,434.88

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Solution

The fourth proportional to 957,019.52, 1,320,688.32 and 521,434.88 is: 719,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,019.52 : 1,320,688.32 = 521,434.88 : x
  2. Step 2: Convert to fraction form
    957,019.52/1,320,688.32 = 521,434.88/x
  3. Step 3: Cross multiply
    957,019.52x = 1,320,688.32 × 521,434.88
  4. Step 4: Simplify right side
    957,019.52x = 688,652,955,656.60
  5. Step 5: Solve for x
    x = 688,652,955,656.60/957,019.52
  6. Step 6: Final answer
    x = 719,580.89

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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.