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Finding the Fourth Proportional to 540,015.30, 808,856.55 and 446,703.30

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Solution

The fourth proportional to 540,015.30, 808,856.55 and 446,703.30 is: 669,090.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,015.30 : 808,856.55 = 446,703.30 : x
  2. Step 2: Convert to fraction form
    540,015.30/808,856.55 = 446,703.30/x
  3. Step 3: Cross multiply
    540,015.30x = 808,856.55 × 446,703.30
  4. Step 4: Simplify right side
    540,015.30x = 361,318,890,111.62
  5. Step 5: Solve for x
    x = 361,318,890,111.62/540,015.30
  6. Step 6: Final answer
    x = 669,090.10

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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.