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Finding the Fourth Proportional to 390,733.16, 584,501.16 and 295,253.60

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Solution

The fourth proportional to 390,733.16, 584,501.16 and 295,253.60 is: 441,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,733.16 : 584,501.16 = 295,253.60 : x
  2. Step 2: Convert to fraction form
    390,733.16/584,501.16 = 295,253.60/x
  3. Step 3: Cross multiply
    390,733.16x = 584,501.16 × 295,253.60
  4. Step 4: Simplify right side
    390,733.16x = 172,576,071,694.18
  5. Step 5: Solve for x
    x = 172,576,071,694.18/390,733.16
  6. Step 6: Final answer
    x = 441,672.45

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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.