Home / 871,730.40-1,307,595.60-310,562.40

Finding the Fourth Proportional to 871,730.40, 1,307,595.60 and 310,562.40

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Solution

The fourth proportional to 871,730.40, 1,307,595.60 and 310,562.40 is: 465,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,730.40 : 1,307,595.60 = 310,562.40 : x
  2. Step 2: Convert to fraction form
    871,730.40/1,307,595.60 = 310,562.40/x
  3. Step 3: Cross multiply
    871,730.40x = 1,307,595.60 × 310,562.40
  4. Step 4: Simplify right side
    871,730.40x = 406,090,027,765.44
  5. Step 5: Solve for x
    x = 406,090,027,765.44/871,730.40
  6. Step 6: Final answer
    x = 465,843.60

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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.