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Finding the Fourth Proportional to 555,475.79, 766,618.94 and 313,773.93

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Solution

The fourth proportional to 555,475.79, 766,618.94 and 313,773.93 is: 433,043.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,475.79 : 766,618.94 = 313,773.93 : x
  2. Step 2: Convert to fraction form
    555,475.79/766,618.94 = 313,773.93/x
  3. Step 3: Cross multiply
    555,475.79x = 766,618.94 × 313,773.93
  4. Step 4: Simplify right side
    555,475.79x = 240,545,036,047.37
  5. Step 5: Solve for x
    x = 240,545,036,047.37/555,475.79
  6. Step 6: Final answer
    x = 433,043.24

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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.