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Finding the Fourth Proportional to 911,801.42, 1,258,459.84 and 601,158.58

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Solution

The fourth proportional to 911,801.42, 1,258,459.84 and 601,158.58 is: 829,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,801.42 : 1,258,459.84 = 601,158.58 : x
  2. Step 2: Convert to fraction form
    911,801.42/1,258,459.84 = 601,158.58/x
  3. Step 3: Cross multiply
    911,801.42x = 1,258,459.84 × 601,158.58
  4. Step 4: Simplify right side
    911,801.42x = 756,533,930,401.43
  5. Step 5: Solve for x
    x = 756,533,930,401.43/911,801.42
  6. Step 6: Final answer
    x = 829,713.48

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1.5x scale

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.