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Finding the Fourth Proportional to 867,461.60, 1,300,155.60 and 446,520.80

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Solution

The fourth proportional to 867,461.60, 1,300,155.60 and 446,520.80 is: 669,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,461.60 : 1,300,155.60 = 446,520.80 : x
  2. Step 2: Convert to fraction form
    867,461.60/1,300,155.60 = 446,520.80/x
  3. Step 3: Cross multiply
    867,461.60x = 1,300,155.60 × 446,520.80
  4. Step 4: Simplify right side
    867,461.60x = 580,546,518,636.48
  5. Step 5: Solve for x
    x = 580,546,518,636.48/867,461.60
  6. Step 6: Final answer
    x = 669,247.51

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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.