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Finding the Fourth Proportional to 540,429.30, 809,477.55 and 447,117.30

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Solution

The fourth proportional to 540,429.30, 809,477.55 and 447,117.30 is: 669,710.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,429.30 : 809,477.55 = 447,117.30 : x
  2. Step 2: Convert to fraction form
    540,429.30/809,477.55 = 447,117.30/x
  3. Step 3: Cross multiply
    540,429.30x = 809,477.55 × 447,117.30
  4. Step 4: Simplify right side
    540,429.30x = 361,931,416,566.62
  5. Step 5: Solve for x
    x = 361,931,416,566.62/540,429.30
  6. Step 6: Final answer
    x = 669,710.94

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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.