Home / 817,723.76-1,127,980.49-531,434.52

Finding the Fourth Proportional to 817,723.76, 1,127,980.49 and 531,434.52

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Solution

The fourth proportional to 817,723.76, 1,127,980.49 and 531,434.52 is: 733,068.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,723.76 : 1,127,980.49 = 531,434.52 : x
  2. Step 2: Convert to fraction form
    817,723.76/1,127,980.49 = 531,434.52/x
  3. Step 3: Cross multiply
    817,723.76x = 1,127,980.49 × 531,434.52
  4. Step 4: Simplify right side
    817,723.76x = 599,447,767,615.34
  5. Step 5: Solve for x
    x = 599,447,767,615.34/817,723.76
  6. Step 6: Final answer
    x = 733,068.79

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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.