Home / 438,051.10-657,076.65-288,751.90

Finding the Fourth Proportional to 438,051.10, 657,076.65 and 288,751.90

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Solution

The fourth proportional to 438,051.10, 657,076.65 and 288,751.90 is: 433,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,051.10 : 657,076.65 = 288,751.90 : x
  2. Step 2: Convert to fraction form
    438,051.10/657,076.65 = 288,751.90/x
  3. Step 3: Cross multiply
    438,051.10x = 657,076.65 × 288,751.90
  4. Step 4: Simplify right side
    438,051.10x = 189,732,131,133.14
  5. Step 5: Solve for x
    x = 189,732,131,133.14/438,051.10
  6. Step 6: Final answer
    x = 433,127.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.