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Finding the Fourth Proportional to 663,012.80, 992,186.40 and 607,025.60

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Solution

The fourth proportional to 663,012.80, 992,186.40 and 607,025.60 is: 908,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,012.80 : 992,186.40 = 607,025.60 : x
  2. Step 2: Convert to fraction form
    663,012.80/992,186.40 = 607,025.60/x
  3. Step 3: Cross multiply
    663,012.80x = 992,186.40 × 607,025.60
  4. Step 4: Simplify right side
    663,012.80x = 602,282,544,771.84
  5. Step 5: Solve for x
    x = 602,282,544,771.84/663,012.80
  6. Step 6: Final answer
    x = 908,402.59

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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.