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Finding the Fourth Proportional to 636,038.86, 877,754.67 and 349,569.10

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Solution

The fourth proportional to 636,038.86, 877,754.67 and 349,569.10 is: 482,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,038.86 : 877,754.67 = 349,569.10 : x
  2. Step 2: Convert to fraction form
    636,038.86/877,754.67 = 349,569.10/x
  3. Step 3: Cross multiply
    636,038.86x = 877,754.67 × 349,569.10
  4. Step 4: Simplify right side
    636,038.86x = 306,835,910,012.70
  5. Step 5: Solve for x
    x = 306,835,910,012.70/636,038.86
  6. Step 6: Final answer
    x = 482,416.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.