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Finding the Fourth Proportional to 832,900, 1,149,313.80 and 470,301.88

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Solution

The fourth proportional to 832,900, 1,149,313.80 and 470,301.88 is: 648,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,900 : 1,149,313.80 = 470,301.88 : x
  2. Step 2: Convert to fraction form
    832,900/1,149,313.80 = 470,301.88/x
  3. Step 3: Cross multiply
    832,900x = 1,149,313.80 × 470,301.88
  4. Step 4: Simplify right side
    832,900x = 540,524,440,849.94
  5. Step 5: Solve for x
    x = 540,524,440,849.94/832,900
  6. Step 6: Final answer
    x = 648,966.79

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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.