Home / 764,084.16-1,145,854.08-290,897.28

Finding the Fourth Proportional to 764,084.16, 1,145,854.08 and 290,897.28

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Solution

The fourth proportional to 764,084.16, 1,145,854.08 and 290,897.28 is: 436,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,084.16 : 1,145,854.08 = 290,897.28 : x
  2. Step 2: Convert to fraction form
    764,084.16/1,145,854.08 = 290,897.28/x
  3. Step 3: Cross multiply
    764,084.16x = 1,145,854.08 × 290,897.28
  4. Step 4: Simplify right side
    764,084.16x = 333,325,835,148.90
  5. Step 5: Solve for x
    x = 333,325,835,148.90/764,084.16
  6. Step 6: Final answer
    x = 436,242.30

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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.