Home / 528,078.90-792,118.35-304,130.10

Finding the Fourth Proportional to 528,078.90, 792,118.35 and 304,130.10

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Solution

The fourth proportional to 528,078.90, 792,118.35 and 304,130.10 is: 456,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,078.90 : 792,118.35 = 304,130.10 : x
  2. Step 2: Convert to fraction form
    528,078.90/792,118.35 = 304,130.10/x
  3. Step 3: Cross multiply
    528,078.90x = 792,118.35 × 304,130.10
  4. Step 4: Simplify right side
    528,078.90x = 240,907,032,997.34
  5. Step 5: Solve for x
    x = 240,907,032,997.34/528,078.90
  6. Step 6: Final answer
    x = 456,195.15

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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.