Home / 830,388.90-1,146,021.33-508,311.84

Finding the Fourth Proportional to 830,388.90, 1,146,021.33 and 508,311.84

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Solution

The fourth proportional to 830,388.90, 1,146,021.33 and 508,311.84 is: 701,522.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,388.90 : 1,146,021.33 = 508,311.84 : x
  2. Step 2: Convert to fraction form
    830,388.90/1,146,021.33 = 508,311.84/x
  3. Step 3: Cross multiply
    830,388.90x = 1,146,021.33 × 508,311.84
  4. Step 4: Simplify right side
    830,388.90x = 582,536,210,931.55
  5. Step 5: Solve for x
    x = 582,536,210,931.55/830,388.90
  6. Step 6: Final answer
    x = 701,522.16

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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.