Home / 808,266.90-1,212,400.35-607,500.30

Finding the Fourth Proportional to 808,266.90, 1,212,400.35 and 607,500.30

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Solution

The fourth proportional to 808,266.90, 1,212,400.35 and 607,500.30 is: 911,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,266.90 : 1,212,400.35 = 607,500.30 : x
  2. Step 2: Convert to fraction form
    808,266.90/1,212,400.35 = 607,500.30/x
  3. Step 3: Cross multiply
    808,266.90x = 1,212,400.35 × 607,500.30
  4. Step 4: Simplify right side
    808,266.90x = 736,533,576,345.11
  5. Step 5: Solve for x
    x = 736,533,576,345.11/808,266.90
  6. Step 6: Final answer
    x = 911,250.45

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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.