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Finding the Fourth Proportional to 437,868.80, 655,420.80 and 424,044.80

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Solution

The fourth proportional to 437,868.80, 655,420.80 and 424,044.80 is: 634,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,868.80 : 655,420.80 = 424,044.80 : x
  2. Step 2: Convert to fraction form
    437,868.80/655,420.80 = 424,044.80/x
  3. Step 3: Cross multiply
    437,868.80x = 655,420.80 × 424,044.80
  4. Step 4: Simplify right side
    437,868.80x = 277,927,782,051.84
  5. Step 5: Solve for x
    x = 277,927,782,051.84/437,868.80
  6. Step 6: Final answer
    x = 634,728.44

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1.5x scale

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.