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Finding the Fourth Proportional to 610,752.84, 915,981.64 and 256,032.38

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Solution

The fourth proportional to 610,752.84, 915,981.64 and 256,032.38 is: 383,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,752.84 : 915,981.64 = 256,032.38 : x
  2. Step 2: Convert to fraction form
    610,752.84/915,981.64 = 256,032.38/x
  3. Step 3: Cross multiply
    610,752.84x = 915,981.64 × 256,032.38
  4. Step 4: Simplify right side
    610,752.84x = 234,520,959,325.50
  5. Step 5: Solve for x
    x = 234,520,959,325.50/610,752.84
  6. Step 6: Final answer
    x = 383,986.69

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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.