Home / 788,463.60-1,182,695.40-289,762.80

Finding the Fourth Proportional to 788,463.60, 1,182,695.40 and 289,762.80

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Solution

The fourth proportional to 788,463.60, 1,182,695.40 and 289,762.80 is: 434,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,463.60 : 1,182,695.40 = 289,762.80 : x
  2. Step 2: Convert to fraction form
    788,463.60/1,182,695.40 = 289,762.80/x
  3. Step 3: Cross multiply
    788,463.60x = 1,182,695.40 × 289,762.80
  4. Step 4: Simplify right side
    788,463.60x = 342,701,130,651.12
  5. Step 5: Solve for x
    x = 342,701,130,651.12/788,463.60
  6. Step 6: Final answer
    x = 434,644.20

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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.