Home / 788,885.60-1,183,328.40-491,259.20

Finding the Fourth Proportional to 788,885.60, 1,183,328.40 and 491,259.20

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Solution

The fourth proportional to 788,885.60, 1,183,328.40 and 491,259.20 is: 736,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,885.60 : 1,183,328.40 = 491,259.20 : x
  2. Step 2: Convert to fraction form
    788,885.60/1,183,328.40 = 491,259.20/x
  3. Step 3: Cross multiply
    788,885.60x = 1,183,328.40 × 491,259.20
  4. Step 4: Simplify right side
    788,885.60x = 581,320,963,121.28
  5. Step 5: Solve for x
    x = 581,320,963,121.28/788,885.60
  6. Step 6: Final answer
    x = 736,888.80

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Double scale
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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.