Home / 702,920.20-1,054,833.90-387,603.40

Finding the Fourth Proportional to 702,920.20, 1,054,833.90 and 387,603.40

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Solution

The fourth proportional to 702,920.20, 1,054,833.90 and 387,603.40 is: 581,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,920.20 : 1,054,833.90 = 387,603.40 : x
  2. Step 2: Convert to fraction form
    702,920.20/1,054,833.90 = 387,603.40/x
  3. Step 3: Cross multiply
    702,920.20x = 1,054,833.90 × 387,603.40
  4. Step 4: Simplify right side
    702,920.20x = 408,857,206,075.26
  5. Step 5: Solve for x
    x = 408,857,206,075.26/702,920.20
  6. Step 6: Final answer
    x = 581,655.22

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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.