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Finding the Fourth Proportional to 570,108.96, 786,717.60 and 315,447.36

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Solution

The fourth proportional to 570,108.96, 786,717.60 and 315,447.36 is: 435,299.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,108.96 : 786,717.60 = 315,447.36 : x
  2. Step 2: Convert to fraction form
    570,108.96/786,717.60 = 315,447.36/x
  3. Step 3: Cross multiply
    570,108.96x = 786,717.60 × 315,447.36
  4. Step 4: Simplify right side
    570,108.96x = 248,167,989,985.54
  5. Step 5: Solve for x
    x = 248,167,989,985.54/570,108.96
  6. Step 6: Final answer
    x = 435,299.23

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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.