Home / 1,296,123.40-1,943,601.90-497,139.40

Finding the Fourth Proportional to 1,296,123.40, 1,943,601.90 and 497,139.40

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Solution

The fourth proportional to 1,296,123.40, 1,943,601.90 and 497,139.40 is: 745,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,123.40 : 1,943,601.90 = 497,139.40 : x
  2. Step 2: Convert to fraction form
    1,296,123.40/1,943,601.90 = 497,139.40/x
  3. Step 3: Cross multiply
    1,296,123.40x = 1,943,601.90 × 497,139.40
  4. Step 4: Simplify right side
    1,296,123.40x = 966,241,082,404.86
  5. Step 5: Solve for x
    x = 966,241,082,404.86/1,296,123.40
  6. Step 6: Final answer
    x = 745,485.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.