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Finding the Fourth Proportional to 662,888.16, 994,688.56 and 288,888.48

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Solution

The fourth proportional to 662,888.16, 994,688.56 and 288,888.48 is: 433,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,888.16 : 994,688.56 = 288,888.48 : x
  2. Step 2: Convert to fraction form
    662,888.16/994,688.56 = 288,888.48/x
  3. Step 3: Cross multiply
    662,888.16x = 994,688.56 × 288,888.48
  4. Step 4: Simplify right side
    662,888.16x = 287,354,066,171.79
  5. Step 5: Solve for x
    x = 287,354,066,171.79/662,888.16
  6. Step 6: Final answer
    x = 433,488.01

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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.