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Finding the Fourth Proportional to 656,079.71, 905,393.24 and 369,604.31

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Solution

The fourth proportional to 656,079.71, 905,393.24 and 369,604.31 is: 510,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,079.71 : 905,393.24 = 369,604.31 : x
  2. Step 2: Convert to fraction form
    656,079.71/905,393.24 = 369,604.31/x
  3. Step 3: Cross multiply
    656,079.71x = 905,393.24 × 369,604.31
  4. Step 4: Simplify right side
    656,079.71x = 334,637,241,900.84
  5. Step 5: Solve for x
    x = 334,637,241,900.84/656,079.71
  6. Step 6: Final answer
    x = 510,055.77

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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.