Home / 919,642.60-1,378,643.10-358,546.60

Finding the Fourth Proportional to 919,642.60, 1,378,643.10 and 358,546.60

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Solution

The fourth proportional to 919,642.60, 1,378,643.10 and 358,546.60 is: 537,499.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,642.60 : 1,378,643.10 = 358,546.60 : x
  2. Step 2: Convert to fraction form
    919,642.60/1,378,643.10 = 358,546.60/x
  3. Step 3: Cross multiply
    919,642.60x = 1,378,643.10 × 358,546.60
  4. Step 4: Simplify right side
    919,642.60x = 494,307,796,118.46
  5. Step 5: Solve for x
    x = 494,307,796,118.46/919,642.60
  6. Step 6: Final answer
    x = 537,499.89

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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.