Home / 916,411.60-1,374,617.40-491,258.80

Finding the Fourth Proportional to 916,411.60, 1,374,617.40 and 491,258.80

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Solution

The fourth proportional to 916,411.60, 1,374,617.40 and 491,258.80 is: 736,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,411.60 : 1,374,617.40 = 491,258.80 : x
  2. Step 2: Convert to fraction form
    916,411.60/1,374,617.40 = 491,258.80/x
  3. Step 3: Cross multiply
    916,411.60x = 1,374,617.40 × 491,258.80
  4. Step 4: Simplify right side
    916,411.60x = 675,292,894,383.12
  5. Step 5: Solve for x
    x = 675,292,894,383.12/916,411.60
  6. Step 6: Final answer
    x = 736,888.20

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Similar ratio
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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.