Home / 1,218,123.20-1,823,248.20-950,434.40

Finding the Fourth Proportional to 1,218,123.20, 1,823,248.20 and 950,434.40

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Solution

The fourth proportional to 1,218,123.20, 1,823,248.20 and 950,434.40 is: 1,422,580.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,123.20 : 1,823,248.20 = 950,434.40 : x
  2. Step 2: Convert to fraction form
    1,218,123.20/1,823,248.20 = 950,434.40/x
  3. Step 3: Cross multiply
    1,218,123.20x = 1,823,248.20 × 950,434.40
  4. Step 4: Simplify right side
    1,218,123.20x = 1,732,877,809,018.08
  5. Step 5: Solve for x
    x = 1,732,877,809,018.08/1,218,123.20
  6. Step 6: Final answer
    x = 1,422,580.09

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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.