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Finding the Fourth Proportional to 778,674.60, 1,168,230.60 and 379,328.40

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Solution

The fourth proportional to 778,674.60, 1,168,230.60 and 379,328.40 is: 569,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,674.60 : 1,168,230.60 = 379,328.40 : x
  2. Step 2: Convert to fraction form
    778,674.60/1,168,230.60 = 379,328.40/x
  3. Step 3: Cross multiply
    778,674.60x = 1,168,230.60 × 379,328.40
  4. Step 4: Simplify right side
    778,674.60x = 443,143,044,329.04
  5. Step 5: Solve for x
    x = 443,143,044,329.04/778,674.60
  6. Step 6: Final answer
    x = 569,099.14

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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.