Home / 818,557.34-1,129,643.16-455,981.10

Finding the Fourth Proportional to 818,557.34, 1,129,643.16 and 455,981.10

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Solution

The fourth proportional to 818,557.34, 1,129,643.16 and 455,981.10 is: 629,272.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,557.34 : 1,129,643.16 = 455,981.10 : x
  2. Step 2: Convert to fraction form
    818,557.34/1,129,643.16 = 455,981.10/x
  3. Step 3: Cross multiply
    818,557.34x = 1,129,643.16 × 455,981.10
  4. Step 4: Simplify right side
    818,557.34x = 515,095,924,758.19
  5. Step 5: Solve for x
    x = 515,095,924,758.19/818,557.34
  6. Step 6: Final answer
    x = 629,272.87

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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.