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Finding the Fourth Proportional to 555,761.63, 766,941.01 and 314,039.00

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Solution

The fourth proportional to 555,761.63, 766,941.01 and 314,039.00 is: 433,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,761.63 : 766,941.01 = 314,039.00 : x
  2. Step 2: Convert to fraction form
    555,761.63/766,941.01 = 314,039.00/x
  3. Step 3: Cross multiply
    555,761.63x = 766,941.01 × 314,039.00
  4. Step 4: Simplify right side
    555,761.63x = 240,849,388,971.65
  5. Step 5: Solve for x
    x = 240,849,388,971.65/555,761.63
  6. Step 6: Final answer
    x = 433,368.15

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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.