Home / 918,244-1,376,577.15-319,127.32

Finding the Fourth Proportional to 918,244, 1,376,577.15 and 319,127.32

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Solution

The fourth proportional to 918,244, 1,376,577.15 and 319,127.32 is: 478,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,244 : 1,376,577.15 = 319,127.32 : x
  2. Step 2: Convert to fraction form
    918,244/1,376,577.15 = 319,127.32/x
  3. Step 3: Cross multiply
    918,244x = 1,376,577.15 × 319,127.32
  4. Step 4: Simplify right side
    918,244x = 439,303,376,652.74
  5. Step 5: Solve for x
    x = 439,303,376,652.74/918,244
  6. Step 6: Final answer
    x = 478,416.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.