Home / 1,425,956.47-2,138,938.36-360,998.65

Finding the Fourth Proportional to 1,425,956.47, 2,138,938.36 and 360,998.65

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Solution

The fourth proportional to 1,425,956.47, 2,138,938.36 and 360,998.65 is: 541,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,956.47 : 2,138,938.36 = 360,998.65 : x
  2. Step 2: Convert to fraction form
    1,425,956.47/2,138,938.36 = 360,998.65/x
  3. Step 3: Cross multiply
    1,425,956.47x = 2,138,938.36 × 360,998.65
  4. Step 4: Simplify right side
    1,425,956.47x = 772,153,849,455.99
  5. Step 5: Solve for x
    x = 772,153,849,455.99/1,425,956.47
  6. Step 6: Final answer
    x = 541,498.89

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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.