Home / 857,277.34-1,286,686.92-458,259.19

Finding the Fourth Proportional to 857,277.34, 1,286,686.92 and 458,259.19

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Solution

The fourth proportional to 857,277.34, 1,286,686.92 and 458,259.19 is: 687,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,277.34 : 1,286,686.92 = 458,259.19 : x
  2. Step 2: Convert to fraction form
    857,277.34/1,286,686.92 = 458,259.19/x
  3. Step 3: Cross multiply
    857,277.34x = 1,286,686.92 × 458,259.19
  4. Step 4: Simplify right side
    857,277.34x = 589,636,104,244.55
  5. Step 5: Solve for x
    x = 589,636,104,244.55/857,277.34
  6. Step 6: Final answer
    x = 687,800.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.