Home / 559,023.23-771,435.20-310,664.33

Finding the Fourth Proportional to 559,023.23, 771,435.20 and 310,664.33

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Solution

The fourth proportional to 559,023.23, 771,435.20 and 310,664.33 is: 428,707.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,023.23 : 771,435.20 = 310,664.33 : x
  2. Step 2: Convert to fraction form
    559,023.23/771,435.20 = 310,664.33/x
  3. Step 3: Cross multiply
    559,023.23x = 771,435.20 × 310,664.33
  4. Step 4: Simplify right side
    559,023.23x = 239,657,402,251.67
  5. Step 5: Solve for x
    x = 239,657,402,251.67/559,023.23
  6. Step 6: Final answer
    x = 428,707.42

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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.