Home / 808,280.40-1,212,420.60-607,513.80

Finding the Fourth Proportional to 808,280.40, 1,212,420.60 and 607,513.80

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Solution

The fourth proportional to 808,280.40, 1,212,420.60 and 607,513.80 is: 911,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,280.40 : 1,212,420.60 = 607,513.80 : x
  2. Step 2: Convert to fraction form
    808,280.40/1,212,420.60 = 607,513.80/x
  3. Step 3: Cross multiply
    808,280.40x = 1,212,420.60 × 607,513.80
  4. Step 4: Simplify right side
    808,280.40x = 736,562,245,904.28
  5. Step 5: Solve for x
    x = 736,562,245,904.28/808,280.40
  6. Step 6: Final answer
    x = 911,270.70

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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.