Home / 553,281.20-829,921.80-343,329.20

Finding the Fourth Proportional to 553,281.20, 829,921.80 and 343,329.20

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Solution

The fourth proportional to 553,281.20, 829,921.80 and 343,329.20 is: 514,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,281.20 : 829,921.80 = 343,329.20 : x
  2. Step 2: Convert to fraction form
    553,281.20/829,921.80 = 343,329.20/x
  3. Step 3: Cross multiply
    553,281.20x = 829,921.80 × 343,329.20
  4. Step 4: Simplify right side
    553,281.20x = 284,936,387,656.56
  5. Step 5: Solve for x
    x = 284,936,387,656.56/553,281.20
  6. Step 6: Final answer
    x = 514,993.80

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1.5x scale

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.