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Finding the Fourth Proportional to 522,688.94, 720,547.23 and 369,456.78

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Solution

The fourth proportional to 522,688.94, 720,547.23 and 369,456.78 is: 509,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,688.94 : 720,547.23 = 369,456.78 : x
  2. Step 2: Convert to fraction form
    522,688.94/720,547.23 = 369,456.78/x
  3. Step 3: Cross multiply
    522,688.94x = 720,547.23 × 369,456.78
  4. Step 4: Simplify right side
    522,688.94x = 266,211,059,433.72
  5. Step 5: Solve for x
    x = 266,211,059,433.72/522,688.94
  6. Step 6: Final answer
    x = 509,310.68

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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.