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Finding the Fourth Proportional to 584,450.40, 877,021.20 and 426,280.80

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Solution

The fourth proportional to 584,450.40, 877,021.20 and 426,280.80 is: 639,673.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,450.40 : 877,021.20 = 426,280.80 : x
  2. Step 2: Convert to fraction form
    584,450.40/877,021.20 = 426,280.80/x
  3. Step 3: Cross multiply
    584,450.40x = 877,021.20 × 426,280.80
  4. Step 4: Simplify right side
    584,450.40x = 373,857,298,752.96
  5. Step 5: Solve for x
    x = 373,857,298,752.96/584,450.40
  6. Step 6: Final answer
    x = 639,673.27

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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.