Home / 581,280.14-871,108.23-281,681.21

Finding the Fourth Proportional to 581,280.14, 871,108.23 and 281,681.21

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Solution

The fourth proportional to 581,280.14, 871,108.23 and 281,681.21 is: 422,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,280.14 : 871,108.23 = 281,681.21 : x
  2. Step 2: Convert to fraction form
    581,280.14/871,108.23 = 281,681.21/x
  3. Step 3: Cross multiply
    581,280.14x = 871,108.23 × 281,681.21
  4. Step 4: Simplify right side
    581,280.14x = 245,374,820,267.36
  5. Step 5: Solve for x
    x = 245,374,820,267.36/581,280.14
  6. Step 6: Final answer
    x = 422,128.34

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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.