Home / 738,041.40-1,107,062.10-509,718.60

Finding the Fourth Proportional to 738,041.40, 1,107,062.10 and 509,718.60

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Solution

The fourth proportional to 738,041.40, 1,107,062.10 and 509,718.60 is: 764,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,041.40 : 1,107,062.10 = 509,718.60 : x
  2. Step 2: Convert to fraction form
    738,041.40/1,107,062.10 = 509,718.60/x
  3. Step 3: Cross multiply
    738,041.40x = 1,107,062.10 × 509,718.60
  4. Step 4: Simplify right side
    738,041.40x = 564,290,143,725.06
  5. Step 5: Solve for x
    x = 564,290,143,725.06/738,041.40
  6. Step 6: Final answer
    x = 764,577.90

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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.