Home / 1,238,496-1,856,189.76-669,854.40

Finding the Fourth Proportional to 1,238,496, 1,856,189.76 and 669,854.40

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Solution

The fourth proportional to 1,238,496, 1,856,189.76 and 669,854.40 is: 1,003,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,496 : 1,856,189.76 = 669,854.40 : x
  2. Step 2: Convert to fraction form
    1,238,496/1,856,189.76 = 669,854.40/x
  3. Step 3: Cross multiply
    1,238,496x = 1,856,189.76 × 669,854.40
  4. Step 4: Simplify right side
    1,238,496x = 1,243,376,877,970.94
  5. Step 5: Solve for x
    x = 1,243,376,877,970.94/1,238,496
  6. Step 6: Final answer
    x = 1,003,940.97

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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.