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Finding the Fourth Proportional to 709,888.02, 979,502.85 and 451,868.82

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Solution

The fourth proportional to 709,888.02, 979,502.85 and 451,868.82 is: 623,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,888.02 : 979,502.85 = 451,868.82 : x
  2. Step 2: Convert to fraction form
    709,888.02/979,502.85 = 451,868.82/x
  3. Step 3: Cross multiply
    709,888.02x = 979,502.85 × 451,868.82
  4. Step 4: Simplify right side
    709,888.02x = 442,606,797,016.14
  5. Step 5: Solve for x
    x = 442,606,797,016.14/709,888.02
  6. Step 6: Final answer
    x = 623,488.19

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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.