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Finding the Fourth Proportional to 462,952.05, 638,898.64 and 258,990.80

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Solution

The fourth proportional to 462,952.05, 638,898.64 and 258,990.80 is: 357,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,952.05 : 638,898.64 = 258,990.80 : x
  2. Step 2: Convert to fraction form
    462,952.05/638,898.64 = 258,990.80/x
  3. Step 3: Cross multiply
    462,952.05x = 638,898.64 × 258,990.80
  4. Step 4: Simplify right side
    462,952.05x = 165,468,869,892.51
  5. Step 5: Solve for x
    x = 165,468,869,892.51/462,952.05
  6. Step 6: Final answer
    x = 357,421.18

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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.