Home / 738,210.40-1,107,315.60-401,412.40

Finding the Fourth Proportional to 738,210.40, 1,107,315.60 and 401,412.40

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Solution

The fourth proportional to 738,210.40, 1,107,315.60 and 401,412.40 is: 602,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,210.40 : 1,107,315.60 = 401,412.40 : x
  2. Step 2: Convert to fraction form
    738,210.40/1,107,315.60 = 401,412.40/x
  3. Step 3: Cross multiply
    738,210.40x = 1,107,315.60 × 401,412.40
  4. Step 4: Simplify right side
    738,210.40x = 444,490,212,553.44
  5. Step 5: Solve for x
    x = 444,490,212,553.44/738,210.40
  6. Step 6: Final answer
    x = 602,118.60

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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.