Home / 753,495.60-1,130,113.80-279,937.20

Finding the Fourth Proportional to 753,495.60, 1,130,113.80 and 279,937.20

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Solution

The fourth proportional to 753,495.60, 1,130,113.80 and 279,937.20 is: 419,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,495.60 : 1,130,113.80 = 279,937.20 : x
  2. Step 2: Convert to fraction form
    753,495.60/1,130,113.80 = 279,937.20/x
  3. Step 3: Cross multiply
    753,495.60x = 1,130,113.80 × 279,937.20
  4. Step 4: Simplify right side
    753,495.60x = 316,360,892,853.36
  5. Step 5: Solve for x
    x = 316,360,892,853.36/753,495.60
  6. Step 6: Final answer
    x = 419,857.65

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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.