Home / 788,784.30-1,183,176.45-742,128.30

Finding the Fourth Proportional to 788,784.30, 1,183,176.45 and 742,128.30

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Solution

The fourth proportional to 788,784.30, 1,183,176.45 and 742,128.30 is: 1,113,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,784.30 : 1,183,176.45 = 742,128.30 : x
  2. Step 2: Convert to fraction form
    788,784.30/1,183,176.45 = 742,128.30/x
  3. Step 3: Cross multiply
    788,784.30x = 1,183,176.45 × 742,128.30
  4. Step 4: Simplify right side
    788,784.30x = 878,068,727,438.54
  5. Step 5: Solve for x
    x = 878,068,727,438.54/788,784.30
  6. Step 6: Final answer
    x = 1,113,192.45

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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.