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Finding the Fourth Proportional to 601,892.08, 830,875.64 and 421,313.20

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Solution

The fourth proportional to 601,892.08, 830,875.64 and 421,313.20 is: 581,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,892.08 : 830,875.64 = 421,313.20 : x
  2. Step 2: Convert to fraction form
    601,892.08/830,875.64 = 421,313.20/x
  3. Step 3: Cross multiply
    601,892.08x = 830,875.64 × 421,313.20
  4. Step 4: Simplify right side
    601,892.08x = 350,058,874,690.45
  5. Step 5: Solve for x
    x = 350,058,874,690.45/601,892.08
  6. Step 6: Final answer
    x = 581,597.41

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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.