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Finding the Fourth Proportional to 583,301.20, 804,955.74 and 315,029.20

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Solution

The fourth proportional to 583,301.20, 804,955.74 and 315,029.20 is: 434,740.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,301.20 : 804,955.74 = 315,029.20 : x
  2. Step 2: Convert to fraction form
    583,301.20/804,955.74 = 315,029.20/x
  3. Step 3: Cross multiply
    583,301.20x = 804,955.74 × 315,029.20
  4. Step 4: Simplify right side
    583,301.20x = 253,584,562,807.61
  5. Step 5: Solve for x
    x = 253,584,562,807.61/583,301.20
  6. Step 6: Final answer
    x = 434,740.34

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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.