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Finding the Fourth Proportional to 602,972.81, 904,479.53 and 303,290

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Solution

The fourth proportional to 602,972.81, 904,479.53 and 303,290 is: 454,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,972.81 : 904,479.53 = 303,290 : x
  2. Step 2: Convert to fraction form
    602,972.81/904,479.53 = 303,290/x
  3. Step 3: Cross multiply
    602,972.81x = 904,479.53 × 303,290
  4. Step 4: Simplify right side
    602,972.81x = 274,319,596,653.70
  5. Step 5: Solve for x
    x = 274,319,596,653.70/602,972.81
  6. Step 6: Final answer
    x = 454,945.22

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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.