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Finding the Fourth Proportional to 590,408.40, 884,300.40 and 485,432.40

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Solution

The fourth proportional to 590,408.40, 884,300.40 and 485,432.40 is: 727,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,408.40 : 884,300.40 = 485,432.40 : x
  2. Step 2: Convert to fraction form
    590,408.40/884,300.40 = 485,432.40/x
  3. Step 3: Cross multiply
    590,408.40x = 884,300.40 × 485,432.40
  4. Step 4: Simplify right side
    590,408.40x = 429,268,065,492.96
  5. Step 5: Solve for x
    x = 429,268,065,492.96/590,408.40
  6. Step 6: Final answer
    x = 727,069.71

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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.