Home / 1,564,372.13-2,158,864.13-1,020,855.65

Finding the Fourth Proportional to 1,564,372.13, 2,158,864.13 and 1,020,855.65

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Solution

The fourth proportional to 1,564,372.13, 2,158,864.13 and 1,020,855.65 is: 1,408,800.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,372.13 : 2,158,864.13 = 1,020,855.65 : x
  2. Step 2: Convert to fraction form
    1,564,372.13/2,158,864.13 = 1,020,855.65/x
  3. Step 3: Cross multiply
    1,564,372.13x = 2,158,864.13 × 1,020,855.65
  4. Step 4: Simplify right side
    1,564,372.13x = 2,203,888,639,588.56
  5. Step 5: Solve for x
    x = 2,203,888,639,588.56/1,564,372.13
  6. Step 6: Final answer
    x = 1,408,800.76

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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.