Home / 1,217,900.61-1,680,690.47-674,037.45

Finding the Fourth Proportional to 1,217,900.61, 1,680,690.47 and 674,037.45

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Solution

The fourth proportional to 1,217,900.61, 1,680,690.47 and 674,037.45 is: 930,164.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,900.61 : 1,680,690.47 = 674,037.45 : x
  2. Step 2: Convert to fraction form
    1,217,900.61/1,680,690.47 = 674,037.45/x
  3. Step 3: Cross multiply
    1,217,900.61x = 1,680,690.47 × 674,037.45
  4. Step 4: Simplify right side
    1,217,900.61x = 1,132,848,315,267.91
  5. Step 5: Solve for x
    x = 1,132,848,315,267.91/1,217,900.61
  6. Step 6: Final answer
    x = 930,164.83

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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.