Home / 857,820-1,286,730.04-587,681.76

Finding the Fourth Proportional to 857,820, 1,286,730.04 and 587,681.76

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Solution

The fourth proportional to 857,820, 1,286,730.04 and 587,681.76 is: 881,522.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,820 : 1,286,730.04 = 587,681.76 : x
  2. Step 2: Convert to fraction form
    857,820/1,286,730.04 = 587,681.76/x
  3. Step 3: Cross multiply
    857,820x = 1,286,730.04 × 587,681.76
  4. Step 4: Simplify right side
    857,820x = 756,187,774,552.07
  5. Step 5: Solve for x
    x = 756,187,774,552.07/857,820
  6. Step 6: Final answer
    x = 881,522.67

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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.