Home / 1,230,423.30-1,845,894.15-520,085.70

Finding the Fourth Proportional to 1,230,423.30, 1,845,894.15 and 520,085.70

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Solution

The fourth proportional to 1,230,423.30, 1,845,894.15 and 520,085.70 is: 780,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,423.30 : 1,845,894.15 = 520,085.70 : x
  2. Step 2: Convert to fraction form
    1,230,423.30/1,845,894.15 = 520,085.70/x
  3. Step 3: Cross multiply
    1,230,423.30x = 1,845,894.15 × 520,085.70
  4. Step 4: Simplify right side
    1,230,423.30x = 960,023,151,128.66
  5. Step 5: Solve for x
    x = 960,023,151,128.66/1,230,423.30
  6. Step 6: Final answer
    x = 780,238.11

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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.