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Finding the Fourth Proportional to 629,271.48, 868,483.50 and 357,407.16

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Solution

The fourth proportional to 629,271.48, 868,483.50 and 357,407.16 is: 493,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,271.48 : 868,483.50 = 357,407.16 : x
  2. Step 2: Convert to fraction form
    629,271.48/868,483.50 = 357,407.16/x
  3. Step 3: Cross multiply
    629,271.48x = 868,483.50 × 357,407.16
  4. Step 4: Simplify right side
    629,271.48x = 310,402,221,241.86
  5. Step 5: Solve for x
    x = 310,402,221,241.86/629,271.48
  6. Step 6: Final answer
    x = 493,272.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.