Home / 704,801.10-1,055,041.65-388,289.10

Finding the Fourth Proportional to 704,801.10, 1,055,041.65 and 388,289.10

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Solution

The fourth proportional to 704,801.10, 1,055,041.65 and 388,289.10 is: 581,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,801.10 : 1,055,041.65 = 388,289.10 : x
  2. Step 2: Convert to fraction form
    704,801.10/1,055,041.65 = 388,289.10/x
  3. Step 3: Cross multiply
    704,801.10x = 1,055,041.65 × 388,289.10
  4. Step 4: Simplify right side
    704,801.10x = 409,661,172,741.02
  5. Step 5: Solve for x
    x = 409,661,172,741.02/704,801.10
  6. Step 6: Final answer
    x = 581,243.66

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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.