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Finding the Fourth Proportional to 541,565.15, 747,260.30 and 312,090.26

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Solution

The fourth proportional to 541,565.15, 747,260.30 and 312,090.26 is: 430,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,565.15 : 747,260.30 = 312,090.26 : x
  2. Step 2: Convert to fraction form
    541,565.15/747,260.30 = 312,090.26/x
  3. Step 3: Cross multiply
    541,565.15x = 747,260.30 × 312,090.26
  4. Step 4: Simplify right side
    541,565.15x = 233,212,658,358.60
  5. Step 5: Solve for x
    x = 233,212,658,358.60/541,565.15
  6. Step 6: Final answer
    x = 430,627.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.