Home / 1,675,643.28-2,312,318.64-911,699.88

Finding the Fourth Proportional to 1,675,643.28, 2,312,318.64 and 911,699.88

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Solution

The fourth proportional to 1,675,643.28, 2,312,318.64 and 911,699.88 is: 1,258,108.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675,643.28 : 2,312,318.64 = 911,699.88 : x
  2. Step 2: Convert to fraction form
    1,675,643.28/2,312,318.64 = 911,699.88/x
  3. Step 3: Cross multiply
    1,675,643.28x = 2,312,318.64 × 911,699.88
  4. Step 4: Simplify right side
    1,675,643.28x = 2,108,140,626,609.76
  5. Step 5: Solve for x
    x = 2,108,140,626,609.76/1,675,643.28
  6. Step 6: Final answer
    x = 1,258,108.25

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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.