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Finding the Fourth Proportional to 472,668.80, 708,355.20 and 303,670.40

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Solution

The fourth proportional to 472,668.80, 708,355.20 and 303,670.40 is: 455,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,668.80 : 708,355.20 = 303,670.40 : x
  2. Step 2: Convert to fraction form
    472,668.80/708,355.20 = 303,670.40/x
  3. Step 3: Cross multiply
    472,668.80x = 708,355.20 × 303,670.40
  4. Step 4: Simplify right side
    472,668.80x = 215,106,506,926.08
  5. Step 5: Solve for x
    x = 215,106,506,926.08/472,668.80
  6. Step 6: Final answer
    x = 455,089.29

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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.