Home / 1,717,421.40-2,576,132.10-438,026.40

Finding the Fourth Proportional to 1,717,421.40, 2,576,132.10 and 438,026.40

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Solution

The fourth proportional to 1,717,421.40, 2,576,132.10 and 438,026.40 is: 657,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717,421.40 : 2,576,132.10 = 438,026.40 : x
  2. Step 2: Convert to fraction form
    1,717,421.40/2,576,132.10 = 438,026.40/x
  3. Step 3: Cross multiply
    1,717,421.40x = 2,576,132.10 × 438,026.40
  4. Step 4: Simplify right side
    1,717,421.40x = 1,128,413,869,687.44
  5. Step 5: Solve for x
    x = 1,128,413,869,687.44/1,717,421.40
  6. Step 6: Final answer
    x = 657,039.60

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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.