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Finding the Fourth Proportional to 642,176.70, 963,265.05 and 602,810.70

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Solution

The fourth proportional to 642,176.70, 963,265.05 and 602,810.70 is: 904,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,176.70 : 963,265.05 = 602,810.70 : x
  2. Step 2: Convert to fraction form
    642,176.70/963,265.05 = 602,810.70/x
  3. Step 3: Cross multiply
    642,176.70x = 963,265.05 × 602,810.70
  4. Step 4: Simplify right side
    642,176.70x = 580,666,479,076.04
  5. Step 5: Solve for x
    x = 580,666,479,076.04/642,176.70
  6. Step 6: Final answer
    x = 904,216.05

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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.