Home / 379,437.16-523,577.70-209,648.04

Finding the Fourth Proportional to 379,437.16, 523,577.70 and 209,648.04

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Solution

The fourth proportional to 379,437.16, 523,577.70 and 209,648.04 is: 289,289.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,437.16 : 523,577.70 = 209,648.04 : x
  2. Step 2: Convert to fraction form
    379,437.16/523,577.70 = 209,648.04/x
  3. Step 3: Cross multiply
    379,437.16x = 523,577.70 × 209,648.04
  4. Step 4: Simplify right side
    379,437.16x = 109,767,038,592.71
  5. Step 5: Solve for x
    x = 109,767,038,592.71/379,437.16
  6. Step 6: Final answer
    x = 289,289.11

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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.