Home / 1,680,749.28-2,319,396.39-916,830.18

Finding the Fourth Proportional to 1,680,749.28, 2,319,396.39 and 916,830.18

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Solution

The fourth proportional to 1,680,749.28, 2,319,396.39 and 916,830.18 is: 1,265,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,749.28 : 2,319,396.39 = 916,830.18 : x
  2. Step 2: Convert to fraction form
    1,680,749.28/2,319,396.39 = 916,830.18/x
  3. Step 3: Cross multiply
    1,680,749.28x = 2,319,396.39 × 916,830.18
  4. Step 4: Simplify right side
    1,680,749.28x = 2,126,492,609,735.05
  5. Step 5: Solve for x
    x = 2,126,492,609,735.05/1,680,749.28
  6. Step 6: Final answer
    x = 1,265,205.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.