Home / 985,579.65-1,360,390.80-577,769.76

Finding the Fourth Proportional to 985,579.65, 1,360,390.80 and 577,769.76

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Solution

The fourth proportional to 985,579.65, 1,360,390.80 and 577,769.76 is: 797,492.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,579.65 : 1,360,390.80 = 577,769.76 : x
  2. Step 2: Convert to fraction form
    985,579.65/1,360,390.80 = 577,769.76/x
  3. Step 3: Cross multiply
    985,579.65x = 1,360,390.80 × 577,769.76
  4. Step 4: Simplify right side
    985,579.65x = 785,992,667,140.01
  5. Step 5: Solve for x
    x = 785,992,667,140.01/985,579.65
  6. Step 6: Final answer
    x = 797,492.79

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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.