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Finding the Fourth Proportional to 918,556, 1,267,726.08 and 516,148

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Solution

The fourth proportional to 918,556, 1,267,726.08 and 516,148 is: 712,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,556 : 1,267,726.08 = 516,148 : x
  2. Step 2: Convert to fraction form
    918,556/1,267,726.08 = 516,148/x
  3. Step 3: Cross multiply
    918,556x = 1,267,726.08 × 516,148
  4. Step 4: Simplify right side
    918,556x = 654,334,280,739.84
  5. Step 5: Solve for x
    x = 654,334,280,739.84/918,556
  6. Step 6: Final answer
    x = 712,351.00

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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.