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Finding the Fourth Proportional to 704,842.56, 971,341.92 and 691,888.32

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Solution

The fourth proportional to 704,842.56, 971,341.92 and 691,888.32 is: 953,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,842.56 : 971,341.92 = 691,888.32 : x
  2. Step 2: Convert to fraction form
    704,842.56/971,341.92 = 691,888.32/x
  3. Step 3: Cross multiply
    704,842.56x = 971,341.92 × 691,888.32
  4. Step 4: Simplify right side
    704,842.56x = 672,060,129,174.37
  5. Step 5: Solve for x
    x = 672,060,129,174.37/704,842.56
  6. Step 6: Final answer
    x = 953,489.71

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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.