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Finding the Fourth Proportional to 910,652.40, 1,365,978.60 and 437,223.60

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Solution

The fourth proportional to 910,652.40, 1,365,978.60 and 437,223.60 is: 655,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,652.40 : 1,365,978.60 = 437,223.60 : x
  2. Step 2: Convert to fraction form
    910,652.40/1,365,978.60 = 437,223.60/x
  3. Step 3: Cross multiply
    910,652.40x = 1,365,978.60 × 437,223.60
  4. Step 4: Simplify right side
    910,652.40x = 597,238,081,014.96
  5. Step 5: Solve for x
    x = 597,238,081,014.96/910,652.40
  6. Step 6: Final answer
    x = 655,835.40

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Similar ratio
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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.