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Finding the Fourth Proportional to 646,503.20, 968,442.60 and 365,692.40

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Solution

The fourth proportional to 646,503.20, 968,442.60 and 365,692.40 is: 547,796.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,503.20 : 968,442.60 = 365,692.40 : x
  2. Step 2: Convert to fraction form
    646,503.20/968,442.60 = 365,692.40/x
  3. Step 3: Cross multiply
    646,503.20x = 968,442.60 × 365,692.40
  4. Step 4: Simplify right side
    646,503.20x = 354,152,098,656.24
  5. Step 5: Solve for x
    x = 354,152,098,656.24/646,503.20
  6. Step 6: Final answer
    x = 547,796.36

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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.