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Finding the Fourth Proportional to 569,397.60, 785,768.40 and 314,748.72

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Solution

The fourth proportional to 569,397.60, 785,768.40 and 314,748.72 is: 434,353.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,397.60 : 785,768.40 = 314,748.72 : x
  2. Step 2: Convert to fraction form
    569,397.60/785,768.40 = 314,748.72/x
  3. Step 3: Cross multiply
    569,397.60x = 785,768.40 × 314,748.72
  4. Step 4: Simplify right side
    569,397.60x = 247,319,598,116.45
  5. Step 5: Solve for x
    x = 247,319,598,116.45/569,397.60
  6. Step 6: Final answer
    x = 434,353.07

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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.