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Finding the Fourth Proportional to 436,458.47, 602,114.88 and 315,408.02

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Solution

The fourth proportional to 436,458.47, 602,114.88 and 315,408.02 is: 435,120.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,458.47 : 602,114.88 = 315,408.02 : x
  2. Step 2: Convert to fraction form
    436,458.47/602,114.88 = 315,408.02/x
  3. Step 3: Cross multiply
    436,458.47x = 602,114.88 × 315,408.02
  4. Step 4: Simplify right side
    436,458.47x = 189,911,859,102.76
  5. Step 5: Solve for x
    x = 189,911,859,102.76/436,458.47
  6. Step 6: Final answer
    x = 435,120.12

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1.5x scale

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.