Home / 718,749.76-1,078,788.64-364,013.12

Finding the Fourth Proportional to 718,749.76, 1,078,788.64 and 364,013.12

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Solution

The fourth proportional to 718,749.76, 1,078,788.64 and 364,013.12 is: 546,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,749.76 : 1,078,788.64 = 364,013.12 : x
  2. Step 2: Convert to fraction form
    718,749.76/1,078,788.64 = 364,013.12/x
  3. Step 3: Cross multiply
    718,749.76x = 1,078,788.64 × 364,013.12
  4. Step 4: Simplify right side
    718,749.76x = 392,693,218,666.96
  5. Step 5: Solve for x
    x = 392,693,218,666.96/718,749.76
  6. Step 6: Final answer
    x = 546,355.96

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1.5x scale

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.