Home / 1,385,495.60-2,078,842.11-745,050.78

Finding the Fourth Proportional to 1,385,495.60, 2,078,842.11 and 745,050.78

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Solution

The fourth proportional to 1,385,495.60, 2,078,842.11 and 745,050.78 is: 1,117,898.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,495.60 : 2,078,842.11 = 745,050.78 : x
  2. Step 2: Convert to fraction form
    1,385,495.60/2,078,842.11 = 745,050.78/x
  3. Step 3: Cross multiply
    1,385,495.60x = 2,078,842.11 × 745,050.78
  4. Step 4: Simplify right side
    1,385,495.60x = 1,548,842,935,552.35
  5. Step 5: Solve for x
    x = 1,548,842,935,552.35/1,385,495.60
  6. Step 6: Final answer
    x = 1,117,898.13

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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.