Home / 909,423.42-1,362,923.22-429,778.62

Finding the Fourth Proportional to 909,423.42, 1,362,923.22 and 429,778.62

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Solution

The fourth proportional to 909,423.42, 1,362,923.22 and 429,778.62 is: 644,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,423.42 : 1,362,923.22 = 429,778.62 : x
  2. Step 2: Convert to fraction form
    909,423.42/1,362,923.22 = 429,778.62/x
  3. Step 3: Cross multiply
    909,423.42x = 1,362,923.22 × 429,778.62
  4. Step 4: Simplify right side
    909,423.42x = 585,755,260,657.56
  5. Step 5: Solve for x
    x = 585,755,260,657.56/909,423.42
  6. Step 6: Final answer
    x = 644,095.20

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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.