Home / 765,901.45-1,056,902.17-421,672.01

Finding the Fourth Proportional to 765,901.45, 1,056,902.17 and 421,672.01

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Solution

The fourth proportional to 765,901.45, 1,056,902.17 and 421,672.01 is: 581,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,901.45 : 1,056,902.17 = 421,672.01 : x
  2. Step 2: Convert to fraction form
    765,901.45/1,056,902.17 = 421,672.01/x
  3. Step 3: Cross multiply
    765,901.45x = 1,056,902.17 × 421,672.01
  4. Step 4: Simplify right side
    765,901.45x = 445,666,066,956.61
  5. Step 5: Solve for x
    x = 445,666,066,956.61/765,901.45
  6. Step 6: Final answer
    x = 581,884.35

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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.