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Finding the Fourth Proportional to 589,317.70, 884,041.35 and 215,421.70

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Solution

The fourth proportional to 589,317.70, 884,041.35 and 215,421.70 is: 323,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,317.70 : 884,041.35 = 215,421.70 : x
  2. Step 2: Convert to fraction form
    589,317.70/884,041.35 = 215,421.70/x
  3. Step 3: Cross multiply
    589,317.70x = 884,041.35 × 215,421.70
  4. Step 4: Simplify right side
    589,317.70x = 190,441,690,487.30
  5. Step 5: Solve for x
    x = 190,441,690,487.30/589,317.70
  6. Step 6: Final answer
    x = 323,156.24

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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.