Home / 1,319,981.10-1,978,659.45-608,768.70

Finding the Fourth Proportional to 1,319,981.10, 1,978,659.45 and 608,768.70

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Solution

The fourth proportional to 1,319,981.10, 1,978,659.45 and 608,768.70 is: 912,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,981.10 : 1,978,659.45 = 608,768.70 : x
  2. Step 2: Convert to fraction form
    1,319,981.10/1,978,659.45 = 608,768.70/x
  3. Step 3: Cross multiply
    1,319,981.10x = 1,978,659.45 × 608,768.70
  4. Step 4: Simplify right side
    1,319,981.10x = 1,204,545,941,119.21
  5. Step 5: Solve for x
    x = 1,204,545,941,119.21/1,319,981.10
  6. Step 6: Final answer
    x = 912,547.87

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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.