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Finding the Fourth Proportional to 611,903.48, 917,302.26 and 217,827.32

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Solution

The fourth proportional to 611,903.48, 917,302.26 and 217,827.32 is: 326,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,903.48 : 917,302.26 = 217,827.32 : x
  2. Step 2: Convert to fraction form
    611,903.48/917,302.26 = 217,827.32/x
  3. Step 3: Cross multiply
    611,903.48x = 917,302.26 × 217,827.32
  4. Step 4: Simplify right side
    611,903.48x = 199,813,492,925.74
  5. Step 5: Solve for x
    x = 199,813,492,925.74/611,903.48
  6. Step 6: Final answer
    x = 326,544.14

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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.