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Finding the Fourth Proportional to 610,547.29, 915,960.45 and 211,187.71

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Solution

The fourth proportional to 610,547.29, 915,960.45 and 211,187.71 is: 316,829.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,547.29 : 915,960.45 = 211,187.71 : x
  2. Step 2: Convert to fraction form
    610,547.29/915,960.45 = 211,187.71/x
  3. Step 3: Cross multiply
    610,547.29x = 915,960.45 × 211,187.71
  4. Step 4: Simplify right side
    610,547.29x = 193,439,589,886.07
  5. Step 5: Solve for x
    x = 193,439,589,886.07/610,547.29
  6. Step 6: Final answer
    x = 316,829.82

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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.