Home / 747,215.42-1,029,952.68-505,409.76

Finding the Fourth Proportional to 747,215.42, 1,029,952.68 and 505,409.76

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Solution

The fourth proportional to 747,215.42, 1,029,952.68 and 505,409.76 is: 696,650.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,215.42 : 1,029,952.68 = 505,409.76 : x
  2. Step 2: Convert to fraction form
    747,215.42/1,029,952.68 = 505,409.76/x
  3. Step 3: Cross multiply
    747,215.42x = 1,029,952.68 × 505,409.76
  4. Step 4: Simplify right side
    747,215.42x = 520,548,136,810.16
  5. Step 5: Solve for x
    x = 520,548,136,810.16/747,215.42
  6. Step 6: Final answer
    x = 696,650.69

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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.