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Finding the Fourth Proportional to 999,803.79, 1,379,725.50 and 540,916.89

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Solution

The fourth proportional to 999,803.79, 1,379,725.50 and 540,916.89 is: 746,463.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,803.79 : 1,379,725.50 = 540,916.89 : x
  2. Step 2: Convert to fraction form
    999,803.79/1,379,725.50 = 540,916.89/x
  3. Step 3: Cross multiply
    999,803.79x = 1,379,725.50 × 540,916.89
  4. Step 4: Simplify right side
    999,803.79x = 746,316,826,513.70
  5. Step 5: Solve for x
    x = 746,316,826,513.70/999,803.79
  6. Step 6: Final answer
    x = 746,463.29

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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.