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Finding the Fourth Proportional to 583,302.60, 804,957.42 and 315,030.60

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Solution

The fourth proportional to 583,302.60, 804,957.42 and 315,030.60 is: 434,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,302.60 : 804,957.42 = 315,030.60 : x
  2. Step 2: Convert to fraction form
    583,302.60/804,957.42 = 315,030.60/x
  3. Step 3: Cross multiply
    583,302.60x = 804,957.42 × 315,030.60
  4. Step 4: Simplify right side
    583,302.60x = 253,586,218,997.05
  5. Step 5: Solve for x
    x = 253,586,218,997.05/583,302.60
  6. Step 6: Final answer
    x = 434,742.14

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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.