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Finding the Fourth Proportional to 496,008.84, 684,545.64 and 281,125.80

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Solution

The fourth proportional to 496,008.84, 684,545.64 and 281,125.80 is: 387,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,008.84 : 684,545.64 = 281,125.80 : x
  2. Step 2: Convert to fraction form
    496,008.84/684,545.64 = 281,125.80/x
  3. Step 3: Cross multiply
    496,008.84x = 684,545.64 × 281,125.80
  4. Step 4: Simplify right side
    496,008.84x = 192,443,440,681.51
  5. Step 5: Solve for x
    x = 192,443,440,681.51/496,008.84
  6. Step 6: Final answer
    x = 387,983.89

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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.