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Finding the Fourth Proportional to 719,542, 993,084.60 and 417,910.96

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Solution

The fourth proportional to 719,542, 993,084.60 and 417,910.96 is: 576,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,542 : 993,084.60 = 417,910.96 : x
  2. Step 2: Convert to fraction form
    719,542/993,084.60 = 417,910.96/x
  3. Step 3: Cross multiply
    719,542x = 993,084.60 × 417,910.96
  4. Step 4: Simplify right side
    719,542x = 415,020,938,547.22
  5. Step 5: Solve for x
    x = 415,020,938,547.22/719,542
  6. Step 6: Final answer
    x = 576,784.87

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1.5x scale

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.