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Finding the Fourth Proportional to 636,653.30, 955,421.55 and 479,213.30

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Solution

The fourth proportional to 636,653.30, 955,421.55 and 479,213.30 is: 719,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,653.30 : 955,421.55 = 479,213.30 : x
  2. Step 2: Convert to fraction form
    636,653.30/955,421.55 = 479,213.30/x
  3. Step 3: Cross multiply
    636,653.30x = 955,421.55 × 479,213.30
  4. Step 4: Simplify right side
    636,653.30x = 457,850,713,866.62
  5. Step 5: Solve for x
    x = 457,850,713,866.62/636,653.30
  6. Step 6: Final answer
    x = 719,152.35

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Similar ratio
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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.