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Finding the Fourth Proportional to 458,295.57, 687,440.93 and 249,262.11

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Solution

The fourth proportional to 458,295.57, 687,440.93 and 249,262.11 is: 373,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,295.57 : 687,440.93 = 249,262.11 : x
  2. Step 2: Convert to fraction form
    458,295.57/687,440.93 = 249,262.11/x
  3. Step 3: Cross multiply
    458,295.57x = 687,440.93 × 249,262.11
  4. Step 4: Simplify right side
    458,295.57x = 171,352,975,465.85
  5. Step 5: Solve for x
    x = 171,352,975,465.85/458,295.57
  6. Step 6: Final answer
    x = 373,891.84

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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.