Home / 380,666.75-571,052.57-127,966.86

Finding the Fourth Proportional to 380,666.75, 571,052.57 and 127,966.86

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Solution

The fourth proportional to 380,666.75, 571,052.57 and 127,966.86 is: 191,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,666.75 : 571,052.57 = 127,966.86 : x
  2. Step 2: Convert to fraction form
    380,666.75/571,052.57 = 127,966.86/x
  3. Step 3: Cross multiply
    380,666.75x = 571,052.57 × 127,966.86
  4. Step 4: Simplify right side
    380,666.75x = 73,075,803,638.00
  5. Step 5: Solve for x
    x = 73,075,803,638.00/380,666.75
  6. Step 6: Final answer
    x = 191,967.92

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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.