Home / 788,487.60-1,182,731.40-490,861.20

Finding the Fourth Proportional to 788,487.60, 1,182,731.40 and 490,861.20

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Solution

The fourth proportional to 788,487.60, 1,182,731.40 and 490,861.20 is: 736,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,487.60 : 1,182,731.40 = 490,861.20 : x
  2. Step 2: Convert to fraction form
    788,487.60/1,182,731.40 = 490,861.20/x
  3. Step 3: Cross multiply
    788,487.60x = 1,182,731.40 × 490,861.20
  4. Step 4: Simplify right side
    788,487.60x = 580,556,954,281.68
  5. Step 5: Solve for x
    x = 580,556,954,281.68/788,487.60
  6. Step 6: Final answer
    x = 736,291.80

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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.