Home / 788,556.34-1,087,828.41-516,506.50

Finding the Fourth Proportional to 788,556.34, 1,087,828.41 and 516,506.50

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Solution

The fourth proportional to 788,556.34, 1,087,828.41 and 516,506.50 is: 712,530.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,556.34 : 1,087,828.41 = 516,506.50 : x
  2. Step 2: Convert to fraction form
    788,556.34/1,087,828.41 = 516,506.50/x
  3. Step 3: Cross multiply
    788,556.34x = 1,087,828.41 × 516,506.50
  4. Step 4: Simplify right side
    788,556.34x = 561,870,444,649.67
  5. Step 5: Solve for x
    x = 561,870,444,649.67/788,556.34
  6. Step 6: Final answer
    x = 712,530.50

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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.