Home / 788,683.90-1,183,025.85-489,502.30

Finding the Fourth Proportional to 788,683.90, 1,183,025.85 and 489,502.30

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Solution

The fourth proportional to 788,683.90, 1,183,025.85 and 489,502.30 is: 734,253.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,683.90 : 1,183,025.85 = 489,502.30 : x
  2. Step 2: Convert to fraction form
    788,683.90/1,183,025.85 = 489,502.30/x
  3. Step 3: Cross multiply
    788,683.90x = 1,183,025.85 × 489,502.30
  4. Step 4: Simplify right side
    788,683.90x = 579,093,874,534.46
  5. Step 5: Solve for x
    x = 579,093,874,534.46/788,683.90
  6. Step 6: Final answer
    x = 734,253.45

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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.