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Finding the Fourth Proportional to 630,488.80, 945,566.80 and 314,712.80

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Solution

The fourth proportional to 630,488.80, 945,566.80 and 314,712.80 is: 471,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,488.80 : 945,566.80 = 314,712.80 : x
  2. Step 2: Convert to fraction form
    630,488.80/945,566.80 = 314,712.80/x
  3. Step 3: Cross multiply
    630,488.80x = 945,566.80 × 314,712.80
  4. Step 4: Simplify right side
    630,488.80x = 297,581,975,215.04
  5. Step 5: Solve for x
    x = 297,581,975,215.04/630,488.80
  6. Step 6: Final answer
    x = 471,986.14

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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.