Home / 805,482.29-1,111,288.95-499,448.50

Finding the Fourth Proportional to 805,482.29, 1,111,288.95 and 499,448.50

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Solution

The fourth proportional to 805,482.29, 1,111,288.95 and 499,448.50 is: 689,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,482.29 : 1,111,288.95 = 499,448.50 : x
  2. Step 2: Convert to fraction form
    805,482.29/1,111,288.95 = 499,448.50/x
  3. Step 3: Cross multiply
    805,482.29x = 1,111,288.95 × 499,448.50
  4. Step 4: Simplify right side
    805,482.29x = 555,031,596,365.85
  5. Step 5: Solve for x
    x = 555,031,596,365.85/805,482.29
  6. Step 6: Final answer
    x = 689,067.41

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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.