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Finding the Fourth Proportional to 669,856.56, 924,271.74 and 427,953.30

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Solution

The fourth proportional to 669,856.56, 924,271.74 and 427,953.30 is: 590,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,856.56 : 924,271.74 = 427,953.30 : x
  2. Step 2: Convert to fraction form
    669,856.56/924,271.74 = 427,953.30/x
  3. Step 3: Cross multiply
    669,856.56x = 924,271.74 × 427,953.30
  4. Step 4: Simplify right side
    669,856.56x = 395,545,141,229.74
  5. Step 5: Solve for x
    x = 395,545,141,229.74/669,856.56
  6. Step 6: Final answer
    x = 590,492.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.