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Finding the Fourth Proportional to 569,709.40, 786,070.56 and 340,225.06

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Solution

The fourth proportional to 569,709.40, 786,070.56 and 340,225.06 is: 469,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,709.40 : 786,070.56 = 340,225.06 : x
  2. Step 2: Convert to fraction form
    569,709.40/786,070.56 = 340,225.06/x
  3. Step 3: Cross multiply
    569,709.40x = 786,070.56 × 340,225.06
  4. Step 4: Simplify right side
    569,709.40x = 267,440,903,440.23
  5. Step 5: Solve for x
    x = 267,440,903,440.23/569,709.40
  6. Step 6: Final answer
    x = 469,433.90

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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.