Home / 671,329.50-1,006,173.45-315,871.26

Finding the Fourth Proportional to 671,329.50, 1,006,173.45 and 315,871.26

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Solution

The fourth proportional to 671,329.50, 1,006,173.45 and 315,871.26 is: 473,420.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,329.50 : 1,006,173.45 = 315,871.26 : x
  2. Step 2: Convert to fraction form
    671,329.50/1,006,173.45 = 315,871.26/x
  3. Step 3: Cross multiply
    671,329.50x = 1,006,173.45 × 315,871.26
  4. Step 4: Simplify right side
    671,329.50x = 317,821,275,430.05
  5. Step 5: Solve for x
    x = 317,821,275,430.05/671,329.50
  6. Step 6: Final answer
    x = 473,420.69

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Double scale
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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.